Tarigan, M., & Fadillah
The validity and reliability of the Indonesian IPIP-NEO-120
IPIP-NEO-120 is a scale consisting of 120 items representing the Five Factor Model (FFM) of personality that can be accessed for free on the IPIP website. This study aims to explain the psychometric properties of The Indonesian IPIP-NEO-120 through its validity and reliability tests. The construct validity was tested using confirmatory factor analysis (CFA) and reliability was tested by measuring the composite reliability value and assessing Cronbach’s alpha estimation. This study involved 624 participants ranging from 14 to 69 years (67% females, 33% males), who had different levels of education. The results showed that the majority of items were found to be valid in measuring their respective dimensions. The reliability test also had valid results with the construct reliability value exceeding .70 for all dimensions and Cronbach’s alpha index ranging from .65 to .90. This study also found that some items were identified as potentially problematic. It is recommended that further analysis may be required for certain items.
