Akira HORIKAMI

This paper proposes a new concept of creativity, the Tripartite Thinking Model of Creativity (TTMC), which defines creativity as an interaction between three modes of thinking: logical, critical, and lateral. The TTMC Test is an experimental measure comprising three subtests collecting both quantitative and qualitative data. Inter-rater reliability results were mixed. Construct validity was assessed through confirmatory factor analysis, which showed overall goodness of fit. However, some factor loadings were low, indicating room for improvement in item design. Discriminant validity was evaluated through covariance structure analysis with the Abbreviated Torrance Test for Adults (ATTA). The correlation was low, implying that the TTMC Test and ATTA measure different constructs of creativity.