Psychometric analysis of the Chinese version of Social Adaptation Self-evaluation Scale (C-SASS).

There are only a very limited number of scales available to measure social motivation in Chinese. Studying social motivation might help researchers to understand more of the relationship between social skills and depression. An English version of the Social Adaptation Self-evaluation Scale (SASS) is a valid measure of social motivation. A Chinese translated version of the SASS was validated in 208 healthy volunteers, who were also evaluated with the Temperament and Character Inventory (TCI) and the Beck Depression Inventory (BDI). Principal Component Analysis showed the C-SASS had a one-factor solution. The Cronbach alpha of the scale was 0.97, but no item redundancy was found. The C-SASS was negatively associated with the BDI (r=-0.39) as predicted. Furthermore, the C-SASS was positively associated with the Cooperativeness (r=0.34) and Self-directedness factors (r=0.37), but negatively associated with the Harm Avoidance factor (r=-0.36) of the TCI as predicted. C-SASS scores were not associated with the Novelty Seeking or Self-transcendence factors of the TCI. Therefore, the C-SASS had adequate construct validity, and internal consistency. The results also supported the external validity, convergent validity and divergent validity of the C-SASS.