Two ways of studying lives in context through time are analysis of longitudinal data and secondary data analysis of long-term studies intended to answer questions not originally posed. The opportunities for, and limitations of, these types of analysis; their relevance to policy; and their applicability to interdisciplinary research are considered.…

This commentary details a number of problems with the study design and data analysis reported by Finkel et al. The commentary also provides suggestions for more fruitful approaches for analyzing data from such studies in the future. (Author/BC)

Studying the process of change becomes tricky from a methodological point of view if change has its origin in both the intrapersonal and societal spheres. This paper examines the problems which arise when discussions of change measure only changing means without considering the fact that constructs of change are continually redefined. For example,…

The National Assessment of Educational Progress (NAEP) currently tests seventeen-year-old students enrolled in public and private secondary schools, but it does not test "out-of-school" seventeen-year-olds who have either graduated or dropped out. Estimating that one of five seventeen-year-olds is out of school, the interpretability of…