[Construction of a Japanese version of the "Regret and Maximization Scale" in decision making].

This study developed a Japanese version of the "Regret and Maximization Scale" in decision making, which was originally constructed by Schwartz, Ward, Monterosso, Lyubomirsky, White, and Lehman (2002). This scale measures assess the tendency to experience regret, and individual differences in the desire to maximize or to satisfy. In Study 1, the original version of the "Regret and Maximization Scale" was translated into Japanese and administered to 307 Japanese university students responded the scale. Factor analysis did not replicate the finding of Schwartz et al. (2002). In Study 2, we developed new items, and constructed a "Japanese Version of the Regret and Maximization Scale", based on the interpretation of the factor analysis in Study 1. This new version of the scale was administered to 163 Japanese university students. The result of factor analysis and reliability analysis indicated that this "Japanese Version of the Regret and Maximization Scale" had a considerably high Cronbach's alpha and conceptual validity.