In cross-cultural child development research there is often a need to translate instruments and instructions to languages other than English. Typically, the translation process focuses on ensuring linguistic equivalence. However, establishment of linguistic equivalence through translation techniques is often not sufficient to guard against…

Discusses principles of human development which are durable across changes in time, culture, and cohort. Analyzes the form these principles are likely to take, the limitations and strengths they are likely to display, and the process by which they are likely to be discovered. (Author/JMB)

Challenges the typical treatment of causal effects in longitudinal data, arguing that models should be conceptualized and tested in ways that directly reflect prior assumptions as to the trait- or state-like nature of the variables. Examples demonstrate that meaningful longitudinal studies of state variables can be conducted without assuming their…

The effects of selective dropout and retesting on the assessment of developmental changes in abilities during adolescence are examined. (ST)