The Mini-IPIP Scale: psychometric features and relations with PTSD symptoms of Chinese earthquake survivors

Zhongquan Li, Zhiqin Sang, Li Wang, Zhanbiao Shi
Psychological Reports 2012, 111 (2): 641-51
The present purpose was to validate the Mini-IPIP scale, a short measure of the five-factor model personality traits, with a sample of Chinese earthquake survivors. A total of 1,563 participants, ages 16 to 85 years, completed the Mini-IPIP scale and a measure of posttraumatic stress disorder (PTSD) symptoms. Confirmatory factor analysis supported the five-factor structure of the Mini-IPIP with adequate values of various fit indices. This scale also showed values of internal consistency, Cronbach's alphas ranged from .79 to .84, and McDonald's omega ranged from .73 to .82 for scores on each subscale. Moreover, the five personality traits measured by the Mini-IPIP and those assessed by other big five measures had comparable patterns of relations with PTSD symptoms. Findings indicated that the Mini-IPIP is an adequate short-form of the Big-Five factors of personality, which is applicable with natural disaster survivors.

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