Indonesian WISC-V Adaptation Shows Four-Factor Structure Works Best

Researchers tested how well the Indonesian version of a children's intelligence test holds up. They looked at 16 subtests from the WISC-V-ID with over 1,500 Indonesian kids aged 6 to 16. The goal was to see if the test's internal structure makes sense when used in Indonesia.

The team ran two types of statistical analyses. First, they used exploratory factor analysis to find natural groupings in the data. This approach clearly supported a four-factor model. A five-factor version did not work as well.

One subtest stood out as problematic. The Picture Concepts section performed poorly in the Indonesian adaptation. When researchers removed it, the results improved significantly.

Confirmatory factor analysis showed both four- and five-factor higher order models fit the data adequately. But the five-factor model had issues. It showed redundancy between the general factor and Fluid Reasoning factor. This overlap made the structure hard to interpret.

Removing the Picture Concepts subtest fixed this problem. The cleaner 15-subtest version worked better.

The study also tested three broad composite scores. General ability, cognitive proficiency, and nonverbal indexes all showed structural plausibility. However, general ability and cognitive proficiency indexes shared a lot of overlapping variance.

These findings suggest the 15-subtest configuration offers the best structural representation for the Indonesian WISC-V. The results also add new evidence about how this test works in an Asian context.

The large sample size of 1,508 participants from the norming sample provided strong regional diversity. This makes the findings more reliable for Indonesian children across different areas.