Validation of the Japanese Version of the Modified Balanced Time Perspective Scale: Factor Structure, Reliability, and Validity Results

A balanced time perspective (BTP) is defined as a frequent and equal tendency to think positively about both one's past and future. A BTP is related to greater psychological well-being, such as life satisfaction and wisdom, and these BTP associations may vary cross-culturally, although few studies of BTP in non-Western countries exist. In order to advance cross-cultural comparisons of BTP, an important methodological step is to validate BTP measures in different cultures. This study aimed to develop and validate a Japanese version of the modified Balanced Time Perspective Scale (mBTPS). Japanese participants (N = 1,020, aged 18-79 years) completed the mBTPS-J, along with Japanese versions of the Zimbardo Time Perspective Inventory (ZTPI-J) and measures of well-being (life satisfaction and wisdom scales). Factor analysis of the mBTPS-J resulted in a 27-item mBTPS-J consisting of Past, Present, and Future subscales. Correlations between the relevant mBTPS-J and ZTPI-J subscales, and with the well-being measures, supported both convergent and predictive validity, respectively. The demonstrated psychometric strengths of the mBTPS-J will allow for specific testing of important cross-cultural questions.