A Korean language translation of the Questions About Behavior Function: initial psychometric evaluation.

Researchers translated the 25-question QABF into Korean. They gave the form to 48 Korean-speaking caregivers of adults with developmental disabilities. Everyone filled it out twice, two weeks apart, so the team could check if answers stayed the same.

The study asked the same five groups of questions as the English form: attention, escape, sensory, tangible, and physical. Caregivers rated how often each problem behavior happened for each reason.

The Korean form kept the same five-factor structure as the original. Cronbach’s alpha was 0.91, showing strong internal consistency. Test-retest reliability averaged 0.84, meaning caregivers gave nearly the same answers two weeks later.

In plain words, the Korean QABF is reliable. You can trust the scores you get from Korean-speaking families.

Faso et al. (2016) also built a new scale, the 75-item DABS, using fancy math (item-response theory) to measure adaptive behavior. Both papers show careful scale building, but the QABF is shorter and ready now, while the DABS took years to finalize.

Beaumont et al. (2008) validated the 25-item LEOSS police stress screener. Like the Korean QABF, it proved quick, reliable, and easy to hand out. Together these studies say brief caregiver or self-report tools can be both short and solid.

Dudley et al. (2019) found the automated LENA device failed with older kids with ASD. Their negative result reminds us: technology shortcuts don’t always work. A simple paper form like the Korean QABF can still beat high-tech gear when accuracy matters.

If you serve Korean-speaking families, you now have a validated tool that takes ten minutes and costs nothing. Use it during intake, re-evaluations, or when new problem behaviors pop up. A reliable Korean QABF means faster hypotheses and quicker, more respectful treatment plans for families whose first language is not English.