DEVELOPMENT AND VALIDATION OF A SHORT SCALE FOR MEASURING BIG FIVE PERSONALITY TRAIT: THE IPIP-BFM-25 INDONESIA, Hanif Akhtar, Saifuddin Azwar

Abstract

The shifting trend of research involving more constructs made the use of short-scale increasingly popular. This research aimed to develop a short version of the IPIP-BFM-50 that measure five Big Five personality trait. There were three studies in this research, including adaptation of the parental scale, short-scale development, and short-scale validation. The total subjects used in this study were 1,003 people with an age range of 14 – 46 years. Validity and reliability of the scale were verified through a series of studies. The result of content validity, factorial validity, and convergent validity showed satisfactory result. The entire scale had a reliability coefficient above .70 using internal consistency and test-retest approach. The correlation between IPIP-BFM-25 and BFI with external variables showed the same pattern. In general, IPIP-BFM-25 Indonesia was a psychometrically acceptable and practically useful short scale for measuring the Big Five personality dimensions.

Key words: Big Five, Indonesian adaptation, IPIP, scale