The conversion model of formal reasoning was examined for its ability to predict the decisions made by college students when solving concrete and abstract syllogisms. Results supported the model's contentions that reasoner's decisions reflect natural language processes in the encoding of syllogistic premises, and follow rationally from…

This study evaluated the diagnostic validity of a task measuring abstract categorization ability in learning disabled (LD) and non-LD children. Data showed that the component of abstract category knowledge that best disciminates LD children from non-LD, is the knowledge of how members of abstract categories differ from each other. (Author/JAZ)

Research directed toward examining clinical depression among college students requires valid criterion measures for identifying depressed individuals. The Beck Depression Inventory (BDI), the most widely-used self-report screening instrument for identifying depressed college students, has been criticized for its heavy emphasis on cognitive items…