Korean Clinical Psychology Association

Current Issue

Korean Journal of Clinical Psychology - Vol. 40 , No. 4

[ Original Article ]
Korean Journal of Clinical Psychology - Vol. 40, No. 4, pp. 352-364
Abbreviation: KJCP
ISSN: 1229-0335 (Print) 2733-4538 (Online)
Print publication date 30 Nov 2021
Received 09 Jul 2021 Revised 15 Oct 2021 Accepted 22 Oct 2021
DOI: https://doi.org/10.15842/kjcp.2021.40.4.003

The Effect of Behavioral Parent Training on Problem Behaviors of Persons with DD and Collateral Effects on Mothers: A Single-Group Pre-post Treatment Design
Kyong-Mee Chung ; Yaeeun Lee ; Suna Park ; Yung Jae Suh
Department of Psychology, Yonsei University, Seoul, Korea

Correspondence to : Kyong-Mee Chung, Department of Psychology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, Korea; E-mail: kmchung@yonsei.ac.kr

© 2021 Korean Clinical Psychology Association
Funding Information ▼


The purpose of this study was to examine the effectiveness of behavioral parent training (BPT) on problem behaviors in Korean children with developmental disabilities (DD) using a single-group pretest-posttest treatment design. Additionally, the collateral effects on Korean mothers with respect to levels of depression, stress, self-efficacy, and knowledge of behavior modification were analyzed. Participants were 60 mothers of children with DD who received 12 weeks of BPT in groups of five to six participants. Data regarding changes in children’s’ problem behaviors and parenting stress, depression, efficacy, and knowledge were collected through self-reports at pre-, post-, and 3-month follow-ups. The results showed significant decreases in children’s aggression, but no changes were detected for self-injury and stereotypy. For mothers, depression and stress levels decreased, and efficacy and knowledge increased. These findings were present post-treatment and were maintained at follow-up. The data collected show strong evidence for the beneficial effects of BPT on parents and children with DD. Implications and challenges are discussed further.

Keywords: behavioral parent training, developmental disabilities, parental effects, problem behaviors


This research was supported by a grant from the Bio & Medical Technology Development Program, funded by the National Research Foundation of Korea, Republic of Korea (No. 07-2021-3009).

Author contributions statement

Yaeeun Lee, a graduate student at Villanova University, analyzed data and prepared the manuscript. Suna Park, a graduate student at Yonsei University, collected and assisted in data analysis. Yongjae Suh, a graduate student at Yonsei University, assisted in the data analysis. Kyong-Mee Chung, professor at Yonsei University, served as the principal investigator of the research grant and supervised the research process. All authors provided critical feedback, participated in the revision of the manuscript, and approved the final submission.

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