Lord's paradox arises from the conflicting inferences obtained from two alternative approaches that are typically used in evaluating the treatment effect using a pre-post test design. The two main approaches for analyzing such data are: (1) to regress the change from pretest to posttest on the treatment indicator (change score approach; CS); (2)…

Many current theories and models include creativity as a component of giftedness, conceptualizing the construct in numerous ways that complement giftedness. Variations in creativity have also been studied among different academic disciplines, suggesting that although there may be higher levels of creativity for some, major choice is a complex…