This study examines program elements related to reductions in drug use and crime among Drug Treatment Courts (DTC) participants as well as theoretical mechanisms--increased social controls and improved perceptions of procedural justice--expected to mediate the effects of DTC on these outcomes. Data are from 157 research participants interviewed…

The trend of "self financing" (Un-aided) institutions has implemented for the last twenty two years in Maharashtra state and other parts of India. The Government does not financially support these institutions. The "job satisfaction" of teachers working in such institutions is always questionable, particularly in those…

The trend of "self financing" (Un-aided) institutions has implemented for the last twenty two years in Maharashtra state and other parts of India. The Government does not financially support these institutions. The "job satisfaction" of teachers working in such institutions is always questionable, particularly in those…

The positive association between volunteering and health has been widely interpreted as evidence of the salutary effect of volunteering during adulthood. Using three waves of data from a national survey, this study uses structural equation models to examine the relationships among volunteering, functional limitations, and depressive symptoms…

This paper discusses two methodological issues regarding the analysis of longitudinal data using structural equation modeling that emerged during the reconsideration of the analysis of a recent study on the relationship between academic motivation and language achievement in elementary education [Stoel R.D., Peetsma, T.T.D. and Roeleveld, J.…

R is free, open-source, cooperatively developed software that implements the S statistical programming language and computing environment. The current capabilities of R are extensive, and it is in wide use, especially among statisticians. The sem package provides basic structural equation modeling facilities in R, including the ability to fit…

This study is the second in a series of investigations attempting to clarify relationships between variables that impact on a young musician's ability to perform music (as assessed on a graded music examination). Consistent with studies on school academic subjects, our previous investigation demonstrated the importance of self-efficacy in…

Finite mixture models are well known to have poorly behaved likelihood functions featuring singularities and multiple optima. Growth mixture models may suffer from fewer of these problems, potentially benefiting from the structure imposed on the estimated class means and covariances by the specified growth model. As demonstrated here, however,…

Our aim in this study was to validate a stress-process model for Hispanic caregivers of adults with mental retardation that incorporates family functioning. The model postulates that maladaptive adult behaviors are related to poorer family relationships and higher levels of family burden, which in turn is related to caregiver psychological…

This study evaluated the stage structure of several quasi-simplex and non-simplex models of moral development in two domains of moral development in a British and a Chinese sample. Analyses were based on data reported by Sachs (1992): the Chinese sample consisted of 1,005 students from grade 9 to post-college, and the British sample consisted of…

Research on factors related to student academic achievement typically involves the use of some type of total cognitive score as the final outcome measure. However, in using a total score, it is assumed that variables related to student learning have the same effect on student learning across academic skill levels. Using a subsample from the first…

The impact of the use of data arising from balanced incomplete block (BIB) spiralled designs on the chi-square goodness-of-fit test in factor analysis is considered. Data from BIB designs posses a unique pattern of missing data that can be characterized as missing completely at random (MCAR). Standard approaches to factor analyzing such data rest…

Though common structural equation modeling (SEM) methods are predicated upon the assumption of multivariate normality, applied researchers often find themselves with data clearly violating this assumption and without sufficient sample size to use distribution-free estimation methods. Fortunately, promising alternatives are being integrated into…

This study explored institutional similarities using modelling techniques in the national university population. Measures of proximity in national datasets shed light on the dynamics of peer group construction. Factors were identified that provide the foundation for peer similarities. Structural equation modelling allowed testing of fit across…

The present study aims at gaining an understanding of structures underlying Korean teachers' willingness to change their traditionally-oriented mathematics teaching practice toward reform-oriented mathematics instruction. Elementary school teachers from a metropolitan city of Korea (N = 281) participated in this study. To deal with this problem,…