Search
Program Calendar
Browse By Day
Browse By Time
Browse By Person
Browse By Room
Browse By Unit
Browse By Session Type
Help
About Vancouver
Personal Schedule
Sign In
This study examined the longitudinal factor structure of general self-concept and locus of control among high school students, with data from the National Educational Longitudinal Study of 1988 (NELS:88). We tested measurement invariance over time and across gender and ethnicity groups, and applied second-order piecewise latent growth models to study changes. In all analyses, we treated Likert-scale items as ordered-categorical variables and used methodology accordingly. The findings suggested that measurement invariance existed over time and across groups. However, the amount of general self-concept and locus of control changed over time and/or differed across groups.