[An attempt to construct a Japanese version of the Implicit Positive and Negative Affect Test (IPANAT)]

Area of Science:

• Psychology
• Affective Science
• Cross-cultural Psychology

Background:

• The Implicit Positive and Negative Affect Test (IPANAT) is a key tool for assessing affect indirectly.
• Developing culturally adapted instruments is crucial for accurate psychological assessment.

Purpose of the Study:

• To develop and validate a Japanese version of the IPANAT.
• To assess the reliability, validity, and sensitivity of the Japanese IPANAT.

Main Methods:

• Factor analysis was used to examine the structure of the Japanese IPANAT.
• Reliability was assessed using internal consistency and test-retest methods.
• Construct validity was evaluated through correlations with explicit affect measures, extraversion, and neuroticism.
• Affect sensitivity was tested using positive, negative, and neutral stimuli.

Main Results:

• Factor analysis confirmed two independent factors representing implicit positive and negative affect.
• The Japanese IPANAT demonstrated sufficient internal consistency and acceptable test-retest reliability.
• The instrument showed adequate construct validity, correlating with related psychological constructs.
• The Japanese IPANAT proved sensitive to affective changes induced by visual stimuli.

Conclusions:

• The developed Japanese version of the IPANAT is a reliable and valid instrument.
• This tool is suitable for the indirect assessment of positive and negative affect in Japanese populations.
• The Japanese IPANAT is sensitive to affective stimuli, supporting its use in research.