Reliability and Validity of the Indonesian Version of Big Five Inventory
Big Five Factor inventory (BFI) is widely used to measure personality. Although several studies have measured the reliability and validity of the 44-item Big Five Inventory, there is only a limited number of research measuring the psychometric properties of the Indonesian adaptation of the Big Five Inventory. The present study examines the reliability and validity of the Indonesian version of the Big Five Inventory. The study involved a large sample comprised of 3,882 college students aged 15-22 years old. The instrument was administered on-site for data collection. Cronbach’s alpha reliability analysis and exploratory factor analysis were conducted to measure the reliability and validity of the instrument. The results showed considerable reliability for items measuring the scales of Extraversion, Conscientiousness, and Neuroticism, while the items for Agreeableness and Openness to experience were slightly below standard. Meanwhile, an analysis examining the number of factors of BFI revealed eight factors instead of the original five proposed by the Five Factor Model (FFM) that served as a framework for BFI. There were 11 items that did not fit with the scales. Further development is required to create a more valid instrument.
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