This paper presents a psychometric analysis of the criterion problem in neo-Piagetian concept development research. The evidence shows that false negative and false positive criterion errors have the same effect on the null hypothesis so that the criterion with the lowest error rate should be utilized. (Author/JMB)

Standard approaches to the development of psychological measures emphasize the role of the research team in identifying constructs, generating and retaining items, and establishing psychometric soundness. Although there are a number of strengths associated with these methods, the resulting measures may not be culturally sensitive to minority…

Aim of the study is to assess empirically the interrelationships among some of Piaget's and Gesell's behavioral tasks. (Author)

Examined psychometric properties of self-perception scales of the Berkeley Puppet Interview (BPI) with children at preschool, kindergarten, and first grade. Found that young children have a multidimensional self-concept that can be reliably measured. The BPI was sensitive to normative change and individual differences. Support for validity was…