Dixon, D. R., Jang, J., Chung, K. M., Jung, W. H., & Matson, J. L. (2013). A Korean language translation of the Questions About Behavior Function: Initial psychometric evaluation. Research in Autism Spectrum Disorders, 34(6), 1917-1921. https://doi.org/10.1016/j.ridd.2013.03.005