The Center for Gifted Education (Center) at William & Mary has provided diverse enrichment programs for high-ability students since 1988. With an aspiration to serve financially disadvantaged students, the Center developed and hosted a summer residential enrichment program in STEM areas. Camp Launch, for low-income, high-ability middle school…

In this article, a heterogeneous latent growth curve model for modeling heterogeneity of growth rates is proposed. The suggested model is an extension of a conventional growth curve model and a complementary tool to mixed growth modeling. It allows the modeling of heterogeneity of growth rates as a continuous function of latent initial status and…