People experience mental incongruity when there is a discrepancy between a standard and their own experience of a situation or behavior. The influence of adolescents' standards and mental incongruity on the development of their identity (N=706) was studied in both work and relational domains using structural equation models. (Author/EMK)

Describes two studies investigating the development of recursive thinking in 60 Dutch children five, seven, and nine years of age. The first study replicated earlier research employing a verbal production procedure. The second study used verbal comprehension procedures and concluded that development appears two years earlier than indicated by the…

In this study Dutch subjects with four different levels of expertise (24 second-year, 24 fourth-year, 24 sixth-year medical students, and 24 internists with at least 4 years of experience) studied, diagnosed, and explained four clinical cases. Diagnostic accuracy increased with the increasing level of expertise. The number of concepts used and the…