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Nam, Yeji; Hong, Sehee – Educational and Psychological Measurement, 2021
This study investigated the extent to which class-specific parameter estimates are biased by the within-class normality assumption in nonnormal growth mixture modeling (GMM). Monte Carlo simulations for nonnormal GMM were conducted to analyze and compare two strategies for obtaining unbiased parameter estimates: relaxing the within-class normality…
Descriptors: Probability, Models, Statistical Analysis, Statistical Distributions
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Cai, Tianji; Xia, Yiwei; Zhou, Yisu – Sociological Methods & Research, 2021
Analysts of discrete data often face the challenge of managing the tendency of inflation on certain values. When treated improperly, such phenomenon may lead to biased estimates and incorrect inferences. This study extends the existing literature on single-value inflated models and develops a general framework to handle variables with more than…
Descriptors: Statistical Distributions, Probability, Statistical Analysis, Statistical Bias
Cain, Meghan K.; Zhang, Zhiyong; Yuan, Ke-Hai – Grantee Submission, 2017
Nonnormality of univariate data has been extensively examined previously (Blanca et al., 2013; Micceri, 1989). However, less is known of the potential nonnormality of multivariate data although multivariate analysis is commonly used in psychological and educational research. Using univariate and multivariate skewness and kurtosis as measures of…
Descriptors: Multivariate Analysis, Probability, Statistical Distributions, Psychological Studies
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Liu, Haiyan; Zhang, Zhiyong; Grimm, Kevin J. – Grantee Submission, 2016
Growth curve modeling provides a general framework for analyzing longitudinal data from social, behavioral, and educational sciences. Bayesian methods have been used to estimate growth curve models, in which priors need to be specified for unknown parameters. For the covariance parameter matrix, the inverse Wishart prior is most commonly used due…
Descriptors: Bayesian Statistics, Computation, Statistical Analysis, Growth Models
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Bianchini, Stefano – Assessment & Evaluation in Higher Education, 2014
This study investigates the feedback effects of teaching quality assessment. Previous literature looked separately at the evolution of individual and aggregate scores to understand whether instructors and university performance depends on its past evaluation. I propose a new quantitative-based methodology, combining statistical distributions and…
Descriptors: Foreign Countries, Feedback (Response), Teacher Effectiveness, College Faculty
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Jozwiak, Katarzyna; Moerbeek, Mirjam – Journal of Educational and Behavioral Statistics, 2012
Studies on event occurrence aim to investigate if and when subjects experience a particular event. The timing of events may be measured continuously using thin precise units or discretely using time periods. The latter metric of time is often used in social science research and the generalized linear model (GLM) is an appropriate model for data…
Descriptors: Statistical Analysis, Time, Sample Size, Social Science Research
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Jennings, Jennifer L.; Deming, David; Jencks, Christopher; Lopuch, Maya; Schueler, Beth E. – Sociology of Education, 2015
Do schools reduce or perpetuate inequality by race and family income? Most studies conclude that schools play only a small role in explaining socioeconomic and racial disparities in educational outcomes, but they usually draw this conclusion based solely on test scores. We reconsider this finding using longitudinal data on test scores and…
Descriptors: School Statistics, Educational Quality, Evidence, Educational Opportunities
O'Connor, Rollanda E.; Bocian, Kathleen M.; Sanchez, Victoria; Beach, Kristen D. – Journal of Learning Disabilities, 2014
In this study, we tested the outcomes of access to a response to intervention (RtI) model in kindergarten or in first grade on end-of-Grade-2 reading achievement and placement in special education. Across five schools, 214 students who began having access to Tier 2 intervention in kindergarten or first grade were compared in Grades 1 and 2 with…
Descriptors: Response to Intervention, Kindergarten, Young Children, Models
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Grier-Reed, Tabitha; Chahla, Rose – Journal of College Student Retention: Research, Theory & Practice, 2015
Career planning courses are one of the most effective ways to improve career development, and the benefits to career decision-making are well documented. The research base regarding whether career courses contribute to academic outcomes is less well-developed. Although recent findings suggest that career courses may improve retention in the first-…
Descriptors: Academic Persistence, Career Development, Career Education, Constructivism (Learning)
Perna, Laura W.; May, Henry; Yee, April; Ransom, Tafaya; Rodriguez, Awilda; Fester, Rachél – Educational Policy, 2015
This study explores whether students from low-income families and racial/ethnic minority groups have the opportunity to benefit in what is arguably the most rigorous type of credit-based transition program: the International Baccalaureate Diploma Programme (IBDP). The analyses first describe national longitudinal trends in characteristics of…
Descriptors: High Schools, Access to Education, Low Income Groups, Minority Group Students
O'Connor, Rollanda E.; Bocian, Kathleen M.; Sanchez, Victoria; Beach, Kristen D. – Grantee Submission, 2014
In this study, we tested the outcomes of access to a Response to Intervention (RtI) model in kindergarten or in first grade on end-of-Grade-2 reading achievement and placement in special education. Across five schools, 214 students who began having access to Tier 2 intervention in kindergarten or first grade were compared in Grades 1 and 2 with…
Descriptors: Response to Intervention, Kindergarten, Young Children, Models
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Woo, Jennie H. – National Center for Education Statistics, 2013
This Statistics in Brief examines three cohorts of recent college graduates 1 year after they attained their bachelor's degree. The graduation years for the three cohorts span a 15-year period: 1992-93, 1999-2000, and 2007-08. The latest cohort (2007-08) graduated in the midst of the 2008 recession. This Statistics in Brief first examines how…
Descriptors: Student Loan Programs, Debt (Financial), Loan Repayment, Paying for College
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Goldsmith, Pat Rubio – Teachers College Record, 2010
Background: Despite a powerful civil rights movement and legislation barring discrimination in housing markets, residential neighborhoods remain racially segregated. Purpose: This study examines the extent to which neighborhoods' racial composition is inherited across generations and the extent to which high schools' and colleges' racial…
Descriptors: Neighborhoods, Racial Segregation, Residential Patterns, Racial Composition