2019 Volume 39 Issue 1 Pages 10-17
The Tinkertoy Test (TTT) is used as a measure of divergent thinking included in the executive function of schizophrenic patients. We added the creation process scores to the current TTT scoring standards and investigated to evaluate the reliability and validity of the Modified TTT criteria. To this end, measures of Divergent Thinking including the Modified TTT, the Design Fluency test (DFT) , the Idea Fluency Test (IFT) , and the Brief Assessment of Cognition in Schizophrenia (BACS) were performed. Using divergent thinking test and an executive functional test of a group of 45 schizophrenic patients and a group of 35 healthy controls, the schizophrenic patients were significantly lower in multiple tests. With the coefficient of Cronbachʼs α was 0.82 in the schizophrenic group and 0.81 in the control group, indicating that the Modified TTT scoring criteria can consistently be measured irrespective of the object. Correlation analysis of the Modified TTT total score, DFT, and IFT identified significant positive correlations among several items, and confirmed the criterion-related validity. These results suggest that the scoring criteria of the Modified TTT possesses both reliability and validity, and is applicable as a measure of Divergent Thinking in schizophrenic patients.
