Learning Disabilities Research & Practice, 29(4), 150–159 C 2014 The Division for Learning Disabilities of the Council for Exceptional Children Salient Predictors of School Dropout among Secondary Students with Learning Disabilities Bonnie Doren University of Wisconsin-Madison Christopher Murray University of Oregon Jeff M. Gau Oregon Research Institute The purpose of this study was to identify the unique contributions of a comprehensive set of predictors and the most salient predictors of school dropout among a nationally representative sample of students with learning disabilities (LD). A comprehensive set of theoretically and empirically relevant factors was selected for examination. Analyses were conducted to explore the unique contribution and relative importance of these factors in predicting dropout. Results indicated that the most salient predictors of school dropout included a set of malleable individual (grades, and engagement in high-risk behaviors), family (parent expectations), and school (quality of students’ relationship with teachers and peers) factors. The findings validate multicomponent dropout prevention and intervention models for this population while at the same time illuminating specific key components that appear to be of particular importance in school dropout among students with LD. Data suggest that students with disabilities are not experiencing the same level of progress as other high school students. According to the Condition of Education 2013, 7 percent of public high school students dropped out during the 2009–2010 school year (Aud et al., 2013). During this same period, 21 percent of students with disabilities dropped out (United States Department of Education, 2012). Students with learning disabilities (LD) make up approximately 62 percent of secondary students with disabilities (Wagner, Newman, Cameto, Levine, & Marder, 2003). Furthermore, students with LD consistently experience the second highest dropout rate among students with disabilities, surpassed only by students with emotional disturbance (National Center for Learning Disabilities, 2013; U.S. Department of Education, 2012). Students with LD, irrespective of dropout, are less likely to be employed, to earn a living a wage, and to be enrolled in or complete postsecondary education in a 4-year institution than students in the general population (Newman, Wagner, & Knokey et al., 2011). Students with LD who dropout experience significantly poorer postchool outcomes in all the above areas compared to peers with LD who graduate (Newman, Wagner, & Knokey et al., 2011; Sitlington & Frank, 1993). A robust set of findings examining the determinants of school dropout in the general adolescent population conRequests for reprints should be sent to B. Doren, University of Wisconsin-Madison. Electronic inquiries should be sent to [email protected]. curs that dropout is a consequence of several factors across multiple contextual settings (e.g., individual, family, school; e.g., Alexander, Entwisle, & Horsey, 1997; Janosz, LeBlanc, Boulerice, & Tremblay, 1997, 2000; Rumberger, 1995). Despite decades of national attention and efforts to reduce dropout rates for students in the general population, little is known about the specific factors and processes that predict school dropout for students with LD. The purpose of the current study was to identify a set of theoretically and empirically derived primary factors that directly predict school dropout among students with LD. LITERATURE REVIEW Consistent with prior theory and research highlighting the multideterminant nature of the school dropout experience, the selection and examination of predictors was grounded in an ecological approach. This perspective acknowledges the influence of an array of personal and contextual factors on experiences and outcomes of individuals. Bronfenbrenner (1977, 1979) codified the ecological approach by defining a unique set of social systems that interact with individuals to shape their experiences and outcomes. Brofenbrenner’s model is often depicted as a series of nested circles with the individual residing in the inner most circle. Immediately surrounding the individual is the microsystem that includes the most proximal settings and social systems in which individuals are directly involved (i.e., families, peers, LEARNING DISABILITIES RESEARCH and schools). Because of the sustained proximity of the microsystem to the individual, the interactions and experiences that occur have the potential to have the greatest direct impact on individual’s development, behavior, and outcomes (Bronfenbrenner, 1994). Surrounding the microsystem is the mesosystem. The mesosystem includes interactions and relationships between and among microsystems. An example of this type of linkage is the participation of parents in parent– teacher conferences. A critical feature of Brofenbrenner’s ecological model is a focus on malleable factors within and across systems. This feature is important because it allows researchers to identify critical factors that are amenable to prevention and intervention efforts. However, the importance of sociodemographic factors cannot be discounted because these factors can affect interactions within and across these systems. This study capitalized on a comprehensive nationally representative longitudinal dataset of secondary students with disabilities in the United States. The dataset contained information on student characteristics (e.g., skills, attitudes, behaviors), settings and interactions contained within students’ microsystems (e.g., families, peers, teachers, classroom) and to some extent students’ mesosystems (family– school interactions). Next, we summarize the findings on school dropout organized by sociodemographic, individual, family, and school-based factors. Sociodemographic Factors Although our focus was largely on malleable factors, one cannot ignore the extensive findings regarding the association between sociodemographic factors and dropout rates in the general population. For example, ethnic/minority status, poverty, limited English proficiency, and gender (i.e., males) have all been shown to be powerful predictors of school dropout rate among secondary students in general (Aud et al., 2013; Dalton, Glennie, Ingles, & Wirt, 2009). Although, sociodemographic factors are important markers of dropout, their predictive role for students with LD remains less clear. Several studies have reported that family socioeconomic status (SES) and race/ethnicity are associated with high school dropout for students with LD (Reschly & Christenson, 2006; Wagner, Newman, Cameto, Garza, & Levine, 2005; Zablocki & Krezmien, 2013). However, several studies have not found an association between SES and race/ethnicity and high school dropout for students with LD (Dunn, Chambers, & Rabren, 2004; Kortering, Haring, & Klockars, 1992; Zablocki & Krezmien, 2013). Even less is known about the predictive role of gender and limited English proficiency. Individual Factors Individual risk factors associated with school performance such as poor academic achievement, absenteeism and problem behaviors have been identified as powerful predictors of dropout for students in the general population (BattinPearson et al., 2000; Janosz et al., 1997). However, the predictive role of these factors in school dropout has been in- 151 consistent in studies focusing on students with LD (Bear, Kortering, & Braziel, 2006; Kortering et al., 1992; Reschly & Christenson, 2006; Zablocki & Krezmian, 2013). Additional risk factors linked to dropout in the general population include poor social skills and engagement in risk behaviors such as substance use, criminal activities, and early sexual activity (e.g., O’Donnell, Hawkins, Catalano, Abbot, & Day, 1995). Students with LD are significantly more likely to exhibit problems with social skills and engage in risk behaviors than are their nondisabled peers, which places students with LD at greater risk of dropout (Kavale & Forness, 1996; Svetaz, Ireland, & Blum, 2000). By contrast, positive individual skills and dispositions such as exhibiting high levels of self-determination, self-concept, and self-advocacy may promote high school completion among students with LD (Morningstar et al., 2010; Murray & Naranjo, 2008). This study examines the relative importance of multiple individual risk and promotive factors in the likelihood of school dropout among students with LD. Family Factors Parent involvement in their child’s education has consistently been shown to be associated with school dropout in the general adolescent population (Battin-Pearson et al., 2000; Dalton et al., 2009). Parent educational involvement typically includes: (a) parent’s expectations of his/her child’s educational achievement, (b) home-based supports such as helping with homework or discussing school-related issues with the child, and (c) school-based involvement such as volunteering at his/her child’s school or attending parent–teacher conferences (Chen & Gregory, 2010; Fan & Williams, 2010). In several descriptive studies, students with LD identified lack of parent involvement in their education at school or at home and low parent expectations as potent reasons for school dropout (Kortering & Braziel, 1999a,b; Murray & Naranjo, 2008). There is limited research on the predictive power of parent educational involvement within the context of other factors and settings on school dropout among students with LD, and thus, further study is warranted. School Factors Several school-based factors are conceptually and empirically relevant to school dropout for students with LD including: (a) the quality of social relationships within the school setting, (b) access to academic coursework, (c) inclusion in general education classrooms, (d) class size, and (e) receipt of instructional and testing accommodations. Student perceptions of the quality of their relationships with teachers and peers have emerged as an important and consistent predictor of school dropout among students without disabilities (e.g., Croninger & Lee, 2001; Lee & Burkam, 2003). Descriptive studies focusing on students with LD reported that poor relationships with teachers and peers were related to dropout. By contrast, studies reported that positive relationships with teachers and peers were related to staying in school (Dunn et al., 2004; Murray & Naranjo, 2008; Seidel & Vaughn, 1991). 152 DOREN ET AL.: PREDICTORS OF DROPOUT AMONG STUDENTS WITH LD In addition to school-based relationships, access to academic coursework such as English Language Arts and mathematics is critical for students to gain a standard diploma and be college and career ready (Newman, Wagner, Huang et al., 2011; U.S. Department of Education, 2010). Newman, Wagner, Huang et al. reported that students with disabilities who completed high school were more likely than those who dropped out to take academic rather than vocational courses. Access to academic coursework required for graduation typically occurs as part of the general education curriculum in general education classrooms. The promise of including students with disabilities in the general education classroom on graduation rates has yet to be realized. According to Goodman, Hazelkorn, Bucholz, Duffy and Kitta (2011), although inclusion rates increased by 62 percent during a 6-year period between 2003 and 2008, graduation rates remained stagnant for students with disabilities. During the same period, graduation rates increased for students without disabilities (Goodman et al., 2011). These findings suggest that students with disabilities who are receiving all or most of their instruction in general education settings may not be poised to graduate. This may in part be due either to the lack of appropriate supports for accessing the general curriculum or to inappropriate classroom placements (Goodman et al., 2011). Class size has received much attention in school reform initiatives. Findings suggest students who learned in small classes during primary grades experienced lower dropout rates and higher on-time graduation rates compared with students who were instructed in regular sized classes (Finn, Gerber, & Boyd-Zharias, 2005). High schools typically have larger average class sizes than elementary or middle schools. Students with disabilities may be particularly disadvantaged in high school classes due to the difficulty in obtaining individualized instruction and personal attention (Wagner, Newman, et al., 2003). Finally, instructional and testing accommodations are important sources of support to access and benefit from the general education curriculum for students with LD. Wagner, Marder, et al. (2003) reported that students with disabilities who received five instructional or testing accommodations were approximately one year farther behind in both reading and math than peers who received no accommodations. This finding suggests that those students in most need of accommodations may be those with lower levels of achievement. The finding also suggests that significant improvement in performance and outcomes may take time to appear as teachers learn how to apply and students learn how to use appropriate accommodations. Neither the unique nor relative contributions of these school factors have been examined in explaining school dropout among students with LD. contribution of a comprehensive set of predictors to school dropout for high school students with LD, and to ascertain the most influential predictors of school dropout among these students. METHOD Participants and Procedures Data for the current study were from the National Longitudinal Transition Study-2 (NLTS2). The NLTS2 is a nationally representative sample of over 11,000 13–17-year-old students who were receiving special education services during the 2000–2001 school years. Data were collected over a 10-year period (2000–2010) in five waves. This study used data contained in Waves 1–4. Several sources were used to obtain the data included within this study. At Wave 1 parents/guardians were interviewed by telephone to ascertain information regarding students’ school and nonschool experiences, personal and educational history (e.g., age disability first identified), household characteristics (e.g., socioeconomic status), and family processes. All parents who could not be reached by telephone were mailed a self-administered questionnaire (83% Wave 1 response rate). Parents/guardians and youth were interviewed as part of Waves 2–4. All youth who could not complete a telephone interview but were able to complete a written version were mailed a self-administered questionnaire. If youth were unable to complete the telephone interview or questionnaire, then the parents/guardian continued the interview on behalf of the sample youth (61% Wave 2 response rate, 50% Wave 3 response rate, 50% Wave 4 response). Finally, a one-time direct face-to-face assessment with a focus on academic achievement, self-determination skills, self-concept, and attitudes toward school and learning was conducted when sample students were between ages 16–18 (56% direct assessment response rate). Response for each sample member was weighted to represent the number of students in his/her disability category and characteristics of the LEA (e.g., regions, size, and wealth). The study sample for this research included any NLTS2 participant identified with LD with follow-up data at Waves 2–4 (n = 725). Study demographic characteristics are shown in Table 1. The study sample was compared to all NLTS2 participants identified with LD (n = 1,122). The 397 participants not included in this study had a modal age of 17 years at Wave 1, were primarily male (66%), white (61%), and lived in a suburban community (54%). The rates were statistically similar to the study sample. However, participants with LD not included in the study reported significantly lower household incomes (p < .001; 33% study sample reported $25,000 and under vs. 47% for excluded participants). Summary and Current Study Descriptive and correlational findings suggest that factors within the individual, family, and school may affect the likelihood of school dropout among students with LD. However, there is scant research examining both the unique and relative contributions of these factors concurrently. Therefore, the purpose of this study was to examine both the unique Measures Outcomes One dichotomously scored outcome (1 = yes, 0 = no) indicating whether or not the participant dropped out of high LEARNING DISABILITIES RESEARCH TABLE 1 Sample Characteristics Female Age 14 years 15 years 16 years 17 years 18 years Household income $25,000 and under $25,001 to $50,000 $50,001 or more Did not report Ethnicity White African-American Hispanic Other Did not report City Designation Rural Suburban Urban Did not report Na % 240 33.1 140 170 160 200 55 19.3 23.5 22.1 27.6 7.6 200 190 230 100 27.8 26.4 31.9 13.9 460 130 110 20 10 63.0 17.8 15.1 2.7 1.4 90 330 220 90 12.3 45.2 30.1 12.3 a As per requirement of the Institute of Education Sciences restricted use data agreement all unweighted sample size numbers are rounded to the nearest ten. school at Waves 1–4 was examined. Parents/guardians and/or youth were asked at Waves 1–4 whether the youth dropped out and did not graduate, received a certificate, took a test for a high school diploma, or previously graduated. A youth was scored as dropping out if dropout status was positive at any wave. Predictors Four domains of predictors were examined: sociodemographic, individual, family, and school-based factors. Sociodemographic predictors included gender, race, poverty status, and English proficiency. Gender was coded as a dichotomous variable (1 = male, 0 = female). Race was collected as a six-point, single choice variable. Due to low cell sizes for Asian/Pacific Islander, American Indian/Alaskan native and “multiple races,” race was recoded (1 = European American/White, 2 = African American/Black, 3 = Hispanic, 4 = other). Poverty status was a dichotomous variable indicating whether the respondent was above or below the federal poverty threshold. English language proficiency was coded as a single choice response in five categories but due to low response rates for some categories was recoded to native/bilingual (= 1) and “other” (= 0). Individual predictors included academic factors, individual risk factors, and individual skills and dispositions. Academic factors included academic achievement, grades, number of absences, number of suspensions/expulsions and classroom behavior. Academic achievement was assessed 153 using the research version of the Woodcock-Johnson III Test of Achievement. Students’ academic achievement in reading and math were included as predictors. Specifically, standard scores were used on the two indicators of reading: synonym/antonym and passage comprehension and two indicators of math: calculation and applied problems. The variable for grades was obtained from the Wave 1 cross instrument data file combining parent, teacher, and school program responses into one variable categorizing a student’s typical grades received in coursework (1 = mostly Ds and Fs, 2 = mostly Cs and Ds, 3 = mostly Bs and Cs, 4 = mostly As and Bs). The number of absences (both excused and unexcused, excluding suspensions or expulsions), and number of suspensions/expulsions (including in-school suspensions, out-ofschool suspensions, and expulsions) were obtained from the school program survey and were continuous variables. NLTS2 calculated the number of absences by taking the number of days students were absent in February in the year the program survey was collected (2002 or 2004) and then multiplied this number by 9 for the average days absent in a school year. The number of days students were absent due to suspensions or expulsions was then subtracted from this value (Wagner, Marder et al., 2003). The number of suspensions/expulsions was the total number of these incidents across the school year within which the program survey was collected. Classroom behavior was an existing scale in the cross-instrument data file. The scale was the sum of four items that described the student’s behavior in the classroom (stays focused, completes homework on time, does not withdraw, participates in discussions across settings), each rated on a four-point scale (1 = rarely, 2 = sometimes, 3 = usually, 4 = almost always). Individual risk factors included a scale of risk behaviors and arrest history. The risk scale was developed for the purposes of the current study and summed the total number of five risk behaviors in which the youth engaged (i.e., drinking alcohol, smoking, sexual intercourse, carrying a weapon, illegal drug use) and was coded 0 = engaged in none to 5 = engaged in all five. Arrest history measured whether or not the youth had ever been arrested (1 = yes, 0 = no). Risk behaviors and arrest history were obtained from the Parent/Youth surveys Part 2 for Waves 2, 3, and 4. Individual skills and dispositions included social skills, self-concept, self-advocacy, and self-determination. Three subscales from the Social Skills Rating System included social assertion, self-control, and cooperation. The social skills scale reports an internal consistency of .90 and test–retest reliability of .80 (SSRS; Gresham & Elliot, 1990). Parents of youth were asked to report how often their sons or daughters engaged in these aspects of social skills. A scale for overall social skills was the sum of the three subscales (0–10 = low ability, 11–16 = medium ability, 17–22 = high ability). A short version of the Student Self Concept Scale with reliability estimates reported between .79 and .92 (SSCS; Gresham, 1995) was used to measure student’s self-concept. The short version included a 15-item subscale that measured students’ confidence in a number of academic and social areas. The sum score of the 15 items with a three-point response option (1 = not at all confident, 2 = not sure, 3 = confident) was used. Self-advocacy was measured by one item that asked parents/teachers how well students asked for what they need. 154 DOREN ET AL.: PREDICTORS OF DROPOUT AMONG STUDENTS WITH LD The item was measured on a four-point scale (1 = not at all well and 4 = very well). Self-advocacy was obtained from the cross-instrument data file. Self-determination was calculated as a sum score of a subset of the 72 items from the Arc Self-Determination Scale with a coefficient α reported of .90 (Wehmeyer & Kelchner, 1995) in the autonomy (15 items), self-realization (5 items), and empowerment domains (6 items). Response options ranged from 1 = not when I have the chance to 4 = every time I have the chance for the autonomy items; and from 1 = never agree to 4 = always agree for the self-realization items. For the empowerment items participants scored one if they chose the empowering option or zero if they chose the nonempowering option when describing themselves on each item. Scores were summed with a possible range of 20–86 with higher scores indicative of greater levels of self-determination. Family predictors included home-based support for schooling, parent involvement in their child’s school, parent involvement in their child’s IEP, and parent expectations for their child’s future. Home-based support was a sum of two items (how often the parent spoke with the youth about school experiences and how often they helped the youth with homework), with one item collapsed into a four-point scale for equivalence (2–5 = very low, 6 = low, 7 = medium, 8 = high). Parent school involvement was a sum of three items and included (a) “attended general school meetings,” (b) “attended school or class events,” or (c) “volunteered at the school.” The range for this scale was from 0 = no involvement to 12 = high involvement. Parent involvement in child’s IEP was a dichotomous variable indicating participation (1 = yes, 0 = no). Parent expectations for the student focused on achievement in the areas of education and independence and were a sum of four items about parent expectations related to whether their child would achieve the following: obtain a high school diploma, attend postsecondary education, live away from home without supervision, and earn enough money to support themselves without parental support. Each item was rated on a four-point scale (1 = definitely will to 4 = definitely won’t). School-based predictors included: (a) the quality of students’ relationship with teachers and peers, (b) whether or not students received instruction in language arts, math or study skills, (c) accommodations received, (d) class size, and (e) time in special education class. The quality of students’ relationships was obtained from a created variable from the parent/youth survey, and was the sum of two items (“gets along with teachers” and “gets along with other students”). Each item was rated on a four-point scale (1 = not at all well, 2 = not very well, 3 = pretty well, 4 = very well). Data on the remaining school predictors were obtained from the school program survey. Receipt of language arts, math, and study skills instruction was scored as either (1 = yes, 0 = no). The rating of accommodations was a continuous variable of whether or not the student received accommodations for such activities as tests, assignments, and instruction. Class size was the number of students in the child’s regular classes. Time in special education classes referred to whether or not the child spent any part of the day in a special education class, noted as a dichotomous variable (1 = yes, 0 = no). Data Analytic Strategy An initial analysis was conducted to assess the unique contribution of each study predictor using univariate logistic regression models to predict the dichotomous student dropout outcome. Next, recursive multivariate logistic regression models were run. All predictors were considered empirically or conceptually important, and thus included in the preliminary multivariate model regardless of their univariate relationship to dropout status. To obtain the most parsimonious model with the most influential predictors, the model was trimmed by excluding the predictor with the highest nonsignificant p value (p < .05) and rerunning the model. Age of the participant was considered a covariate and stayed in the model regardless of p value in order to adjust for any potential age-related effects. The final multivariate model included only variables that significantly predicted student dropout status and age of the participant. Odds ratios were interpreted as the measure of effect size using the convention 1.48 small, 2.48 medium, and 4.28 large effect, for odds ratios greater than 1.0, and 0.68 small, 0.40 medium, and 0.23 large, for odds ratios less than 1.0 (Lipsey & Wilson, 2001). Complex sample surveys like the NLTS2 dataset, deviate from simple random sampling and require consideration of the sampling strategy design features to ensure unbiased estimates of the population parameters. All models were run with the SAS PROC SURVEYLOGISTIC procedures to accommodate the cluster, stratification, and sampling weights used in the NLTS2 study. When data from multiple instruments are combined, it is appropriate to use the weight from the instrument with the smallest sample size. The sampling weight from the Wave 4 parent/youth assessment, the smallest sample size, was used for this study. If missing the weight from Wave 4 assessment, then the weight from the Wave 3 parent/youth assessment, the next smallest sample size, was used. The Taylor series linearization technique for variance estimation was used to account for lack of independence due to sampling within clusters. Missing Data and Multiple Imputation Procedure Rates of missing data on the study sample (n = 725) ranged from 0% to 44% with 1% missing the study outcome, 0% to 35% for demographic predictors, 2% to 44% for individual skill/risk predictors, 8% to 18% for family predictors, and 5% to 44% for school experience predictors. Of the 29 study predictors 10 predictors were missing 10% or less data, 3 were missing between 10% and 29% data, 8 were missing between 30% and 39% data, and 8 were missing between 40% and 44% data. Although it is not possible to know for sure that data are missing at random (MAR) because information about the value of the missing data is not available, the MAR assumption can be made more tenable as the imputation model is made more general. The inclusion of additional predictors in the imputation model can reduce bias and make the MAR assumption more plausible (Allison, 2009; He, Zaslavsky, & Landrum, 2009). Therefore, an imputation model was used that included both auxiliary variables correlated with the study outcome (e.g., self-care LEARNING DISABILITIES RESEARCH ability) and variables uncorrelated with the outcome (e.g., grades, IEP status). Multiple imputations for missing data are also conditional on the sampling design (Reiter, Raghunathan, & Kinney, 2006); therefore imputation models included strata and clusters nested within strata. Sequential regression multiple imputation (SRMI; van Buuren, 2007) was used to impute 20 datasets using the IVEware software V0.2 (Raghunathan, Solenberger, & Van Hoewyk, 2002). SRMI specifies a multivariate model by separate conditional models for each incomplete variable allowing for imputation of variables with different distributional properties. For this study, three models were specified: (a) a normal linear regression model for continuous variables, (b) a logistic regression model for binary variables, and (c) a generalized logit regression model for variables with more than two categories. Finally, the SAS PROC MIANALYZE was used to combine the model effects across 20 imputed datasets. RESULTS The dropout rate for the study participants (n = 725) was 14.1%. Descriptive statistics identified a number of predictors that differed as a function of dropout status at a p value less than .05. Students who dropped out had on average lower social skills, higher risk scores, and got along less with teachers and other students (Means = 12.2, 2.1, 5.6, respectively) compared to students who did not dropout (Means = 14.3, 1.5, 6.5, respectively). Also, students who dropped out showed a higher percentage of being arrested (26% vs. 10%), a lower percentage of having a parent involved in his/her child’s IEP (24% vs. 12%), and a lower percentage of being fully included in general education classes (9% vs. 15%). The results of the univariate logistic regression models predicting dropout status are shown in Table 2. None of the demographic characteristics uniquely contributed to student dropout status. Four of the individual factors significantly predicted dropout: grades (OR = 0.42), social skills (OR = 0.84), risk behaviors (OR = 1.44), and ever been arrested (OR = 2.98). The odds a student would dropout decreased by 138% for each one unit increase in grades and by 19% for each one unit increase in social skills. The odds a student would drop out increased by 44% for each one unit increase in risk behaviors and by 198% for students who had ever been arrested compared to those who had not. Two of the family measures significantly predicted dropout status: parent school involvement (OR = 0.88) and parent expectations (OR = 3.45). The odds of dropping out decreased by 13% for each unit increase in parent school involvement and increased by 245% for each unit increase in negative parent expectations. Finally, one school measure significantly predicted school dropout status—getting along with teachers and other students (OR = 0.72). The likelihood of dropping out decreased by 39% for every unit increase in getting along with teachers and other students. Results of the final multivariate model are shown in Table 3. Four predictors remained significantly associated with the likelihood of school dropout in the final model. Two individual measures significantly predicted dropout: grades 155 (OR = 0.51) and risk behaviors (OR = 1.45). The odds of dropping out of school decreased by 96% for each one unit increase in grades and increased by 45% for each one unit increase in risk behaviors. One family measure significantly predicted dropout in the final model: parent expectations (OR = 2.83). The odds of dropping out increased by 183% for each one unit increase in negative parent expectations. Finally, one school experience measure significantly predicted dropout: getting along with teachers and other students (OR = 0.82). The odds of dropping out decreased by 22% for each one unit increase in getting along with teachers/students. DISCUSSION Students with LD face an increased risk of school dropout compared with students without disabilities. However, far less is currently known about the factors and processes that predict school dropout for students with LD than is known about factors predicting dropout for adolescents in the general population. The purpose of the current study was to add to the research base on predictors of school dropout among students with LD. The findings indicated that the most salient predictors of school dropout among students with LD included individual, family, and school factors. Notably, fixed attributes related to sociodemographic characteristics of students did not uniquely contribute to school dropout and did not remain in the final multivariate model. These results are somewhat surprising given the significant direct association often reported between sociodemographic variables and dropout in the general population. But research pertaining to students with high incidence disabilities has not consistently found an association between these variables and dropout (Dunn et al., 2004; Wagner et al., 2005; Zablocki & Krezmien, 2013). These findings are promising in the sense that they suggest that alterable variables such as students’ individual behaviors, skills, dispositions, and experiences within the contexts of families and schools may be more important determinants of school dropout than are fixed attributes and traits. Two individual factors, grades and engagement in risk behaviors, were significant in the final multivariate model. The finding that grades were predictive of school dropout are consistent with prior research of students with high incidence disabilities and with students own reports about why they dropout of school (Bounds & Gould, 2000; Kortering & Braziel, 1999a,b; Scanlon & Mellard, 2002; Zablocki & Krezmien, 2013). The importance of grades in predicting school dropout for students with LD reinforces the need to identify strategies designed to improve the academic skills of students with LD. Dynarski et al. (2008) identified several evidence-based academically focused recommendations for students in general that have moderate support in preventing school dropout. These recommendations include providing academic support, personalized instruction, and rigorous and relevant instruction. The findings of this study support the need for these types of efforts for students with LD. Our findings also highlight the importance of including grades as an indicator within early warning systems that schools and districts are encouraged to 156 DOREN ET AL.: PREDICTORS OF DROPOUT AMONG STUDENTS WITH LD TABLE 2 Results of Univariate Logistic Regression Model 95% CI Demographics Race Caucasian vs. African American Caucasian vs. Hispanic Caucasian vs. other race Gender Poverty English language proficiency Individual risks/skills Self-determination Academic Knowledge Synonym/antonym Passage comprehension Calculation Applied problems Self-concept confidence Classroom behavior scale Self-advocacy Grades Number of absences Number of suspensions, expulsions Social skills scale Risk scale Ever been arrested Family School support youth received from adults Parent school involvement Parent involvement in SPED/transition Parent expectations School Experiences/Context Getting along with teachers and other students Language arts instruction Math instruction Study skills instruction Number of modifications Class size Special education class Est. SE t p OR LB UB −0.214 −0.401 −0.810 −0.227 0.189 −0.254 .374 .384 .504 .288 .300 .757 −0.57 −1.04 −1.61 −0.79 0.63 0.34 .567 .297 .108 .430 .529 .738 0.81 0.67 0.44 0.80 1.21 0.78 0.39 0.32 0.17 0.45 0.67 0.18 1.68 1.42 1.20 1.40 2.18 3.42 −0.179 .018 1.01 .315 0.98 0.95 1.02 −0.010 −0.009 −0.013 −0.017 −0.005 −0.105 −0.173 −0.879 0.062 0.011 −0.172 0.362 1.093 .011 .009 .009 .010 .029 .057 .168 .144 .034 .074 .039 .122 .315 −0.91 −0.93 −1.53 −1.67 −0.16 −1.86 −1.03 −6.10 1.81 0.15 −4.32 2.97 3.48 .363 .357 .128 .098 .869 .065 .305 <.001 .071 .880 <.001 .003 <.001 0.99 0.99 0.99 0.98 1.00 0.90 0.84 0.42 1.06 1.01 0.84 1.44 2.98 0.97 0.98 0.97 0.96 0.94 0.81 0.60 0.31 0.99 0.88 0.78 1.13 1.61 1.01 1.01 1.00 1.00 1.05 1.01 1.17 0.55 1.14 1.17 0.91 1.82 5.53 0.059 −0.124 −0.413 1.238 .094 .053 .420 .205 0.63 −2.31 −0.98 6.01 .528 .021 .327 <.001 1.06 0.88 0.66 3.45 0.88 0.80 0.29 2.30 1.28 0.98 1.51 5.16 −0.334 .080 −4.18 <.001 0.72 0.61 0.84 −0.210 0.575 0.181 −0.057 −0.013 0.596 .741 .676 .315 .073 .018 .391 −0.28 0.85 0.57 −0.78 −0.78 1.52 .778 .397 .566 .439 .434 .130 0.81 1.78 1.20 0.94 0.99 1.82 0.19 0.47 0.65 0.82 0.95 0.84 3.47 6.69 2.22 1.09 1.02 3.91 Est. = estimate, SE = standard error, t = t-value, p = p-value, OR = odds ratio, CI = confidence interval, LB = lower bound, UB = upper bound. use to identify struggling students at-risk of school dropout (Therriault, O’Cummings, Heppen, Yerhot, & Scala, 2013). Some researchers speculate that grades may not only represent mastery of course content, but additional nonacademic skills such as motivation, study skills, and perseverance (Farrington et al., 2012). This perspective suggests that grades carry additional information about students that can be targeted in prevention and intervention efforts. Engagement in risk behaviors remained a salient predictor of school dropout for students with LD in the study sample. Several studies found an association between engagement in risk behaviors and lack of school bonding and disengagement, which in turn has been linked to school dropout (Henry, Knight, & Thornberry, 2012; Reschly & Christenson, 2006). Although causal linkages were not disentangled in this study, prior research indicates that the link between risk behaviors and school disengagement may be connected to school dropout for students with LD. One implication of this potential linkage is that interventions targeting school disengagement may reduce engagement in risk behaviors, which in turn may reduce the likelihood of dropping out. However, because of the ambiguity of the directionality of this relationship, interventions may be more effective if both indicators of school disengagement and engagement in risk behaviors are targeted. Parent expectations of their child’s future success was the sole family predictor that remained significantly associated with school dropout in the final multivariate model. Few studies have examined family factors as determinants of dropout among students with LD. However, there are corollary findings pertaining to the important relationship between parent expectations and a variety of postschool outcomes of students with disabilities in general (Carter, Austin, & Trainor, 2011; Doren, Gau, & Lindstrom, 2012). The findings from this study are important because parent expectations predicted school dropout among students with LD after controlling for LEARNING DISABILITIES RESEARCH TABLE 3 Results of Final Multivariate Logistic Regression Model 95% CI Est. SE t p OR LB UB Age 0.260 .109 2.38 .017 1.30 1.05 1.61 Grades −0.676 .171 −3.95 <.001 0.51 0.36 0.71 Parent expectations 1.041 .207 5.02 <.001 2.83 1.89 4.25 Risk scale 0.373 .136 2.74 .007 1.45 1.11 1.90 Getting with teachers/students −0.195 .094 −2.07 .038 0.82 0.68 0.99 Est. = estimate, SE = standard error, t = t-value, p = p-value, OR = odds ratio, CI = confidence interval, LB = lower bound, UB = upper bound. other important factors and processes in multiple contexts. Some researchers posit that parent expectations influence their child through the parent’s behavior and activities (e.g., Alexander et al., 1997). Thus, parents with high educational expectations may be parents that are more likely than those with low expectations to advocate for their child’s educational needs, provide educational support, and be more positively involved in their child’s schooling (Alexander et al., 1997). However, in this study, level of parent involvement in these activities did not remain a salient predictor of school dropout. Other researchers suggest that parent expectations may be transmitted to their child more subtly through verbal or nonverbal messages and these messages may be internalized by the child, and in turn, influence his/her own expectations, attitudes, and behaviors (e.g., Eccles & Wigield, 2002). One implication of this view is the need for prevention and intervention strategies to provide parents with knowledge and skills to explore and reframe negative attitudes, messages, and behaviors related to the expectations of their child’s future. The findings also highlight the importance of equipping parents with explicit support strategies (including passive and active verbal and behavioral support) to encourage their child to stay in school. Moreover, intervention and prevention efforts can target students themselves by equipping them with the knowledge and skills to buffer the effects of negative expectations. This could include matching students at risk of dropout with a supportive adult in the school, and providing students with curricula, instruction and opportunities to promote positive self-concept and self-determination (Christenson & Thurlow, 2004; Eisenman, 2007). Finally, students’ perceptions of the quality of their relationships with teachers and peers were associated with school dropout for students with LD. This finding is consistent with those reported by Seidel and Vaughn (1991) who found that students with LD who dropped out of high school reported having trouble with teachers and their peers. By contrast, having a good relationship with teachers and peers has been found to promote school completion among youth with LD (Murray & Naranjo, 2008). Positive relationships with teachers and peers have been identified as critical to a student’s sense of belonging and acceptance in school, which in turn has been associated with higher levels of school engagement and negatively associated with school disengagement and dropping out (Reschly & Christenson, 2006). The finding suggests that interventions directed at training teachers 157 to improve their interactions with students in the classroom could be an effective strategy in dropout prevention efforts. Furthermore, interventions that target students’ social skills and encourage participation in social activities may facilitate positive relationships between students with LD and their teachers and peers. It is important to note that the original intention of this investigation was to examine the unique contribution and relative importance of a constellation of factors within and across settings. Our findings indicated key factors within the individual, family, and school emerged as more salient than others to explain dropout status among this population. Thus, one implication of this work is the validation that multicomponent prevention and intervention efforts that target the multiple settings of a student’s context may be more efficacious than efforts that target a singular setting. The findings provide specific targets for prevention and intervention efforts that may be particularly relevant for students LD. Furthermore, the findings suggest that focusing on the four factors emerging from this study may be an efficient way to identify and screen students with LD who are at most risk of dropping out. Limitations and Future Research This study has several limitations that should be noted when interpreting the findings. First, as with any secondary analysis, the study is constrained by the design of the NLTS2 and the items available within the dataset. Second, the findings may not generalize to students with LD from low-income families. As noted in the method section, a significantly lower percentage of participants who met our inclusion criteria for the study reported making an annual income of $25,000 or less compared with participants excluded from the study. Third, although our intent was to select a comprehensive set of factors to predict dropout among students that was grounded in prior research, there may be other measures that may significantly influence dropout among this population that we did not select. 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After high school: A first look at the postschool experiences of youth with disabilities. A report from the National Longitudinal Transition study-2 (NLTS2). Menlo Park, CA: SRI International. Wagner, M., Newman, L., Cameto, R., Levine, P., & Marder, C. (2003). Going to school: Instructional contexts, programs, and participation of secondary school students with disabilities. Menlo Park, CA: SRI International. Wehmeyer, M., & Kelchner, K. (1995). Arc self-determination scale adolescent version. Self determination assessment project. Silver Springs, MD: The Arc of the Unites States. Zablocki, M., & Krezmien, M. P. (2012). Drop-out predictors among students with high-incidence disabilities: A national longitudinal and transitional study 2 analysis. Journal of Disability Policy Studies. Advanced online publication. doi:10.1177/1044207311427726 About the Authors Bonnie Doren, Ph.D., is an Assistant Professor of Special Education at the University of Wisconsin-Madison. Christopher Murray, Ph.D., is a Professor of Special Education at the University of Oregon. Jeff M. Gau, M. S., is a Data Analyst at the Oregon Research Institute.
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