Improving the psychometric properties of the Basadur simplex creative problem solving profile inventory

Abstract

<p>Follow-on research was conducted to improve the psychometric properties of the Basadur Simplex Creative Problem Solving Profile (CPSP) I nventory. How the inventory was originally developed and tested for reliability and validity is reviewed. Then, a special stepwise procedure that was used to improve the inventory is described. First, the inventory was expanded from twelve to twenty-one item groups. This improved internal consistency significantly. Then selected word pairs were systematically removed from the two bi-polar scales of the expanded i nventory to try to reduce the number of item groups while maintaining the internal consistency improvement. A new twelve item group experimental version emerged and was recommended for further testing. The twenty-one item group expanded scale was the best alternative overall psychometrically and was also recommended for further testing. Additional opportunities were identified for further improving both the new twenty-one and twelve item group experimental inventories.</p>