Psychometric Properties and Measurement Invariance of the Korean Future Time Perspective Scale

초록

The Future Time Perspective Scale is a self-reported questionnaire measuring how individuals perceive their remaining time in life. This study aimed to (a) validate a Korean version of the Future Time Perspective Scale (K-FTPS) and (b) examine its measurement invariance across age groups. A total of 492 participants aged 20-89 years completed the K-FTPS, Positive and Negative Affect Schedule, Psychological Well-Being Scale, Life Orientation Test, and Zimbardo Time Perspective Inventory. The psychometric evaluation entailed a series of analytical procedures, including reliability and validity assessments, explor- atory factor analysis (EFA), confirmatory factor analyses (CFA), and measurement invariance testing. The K-FTPS demon- strated excellent internal consistency (α=.92). The EFA and CFA indicated that the two-factor model was the best fit. The findings supported the scale’s convergent and discriminant validity. Furthermore, the measurement invariance test supported configural, metric, partial scalar, and partial strict invariance across age groups. The K-FTPS was shown to be a reliable and valid measure in a Korean population and has potential applicability to broader populations. It may serve as a valuable tool in research on human development and well-being.

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