# A Japanese translation of the Swedish Universities Scales of Personality

## TL;DR

This paper presents a Japanese version of a personality test with good reliability and three key personality dimensions.

## Contribution

The paper introduces a validated Japanese translation of the Swedish Universities Scales of Personality.

## Key findings

- The Japanese version of the SSP showed acceptable Cronbach’s alpha values for 11 out of 13 scales.
- A principal factor analysis confirmed the three main personality dimensions: Neuroticism, Aggression, and Extraversion.
- The SSP-J11 is reliable and suitable for personality research and clinical use in Japan.

## Abstract

The Swedish Universities Scales of Personality (SSP) is a personality measurement tool with a short test battery of high psychometric quality, previously not availiable in Japanese.

We translated the SSP into Japanese and administered it to 103 Japanese nationals. For 11 of the 13 SSP scales in the Japanese version of the SSP (SSP-J11), the Cronbach’s alpha ranged from 0.50 to 0.82 with good internal scale reliability.

A principal factor analysis replicated the previous work by identifying the same three principal dimensions of Neuroticism, Aggression, and Extraversion factors.

The resulting three-factor SSP-J11 shows acceptable reliability and should provide informative insights about personality traits in research and clinical practice in a Japanese context.