Figure 2

Change in scores: SDQ, PSI, BDI-II, IRS. Numbers in the figures show each participant’s ID, SDQ: Strengths Difficulties Questionnaire. 0<normal<12, 13<borderline<15, 16<high risk<40, PSI: Parenting Stress Index. Standard score of the Japanese population is 190.8±29.8 (mean±SD). Larger score indicates a more severe condition, ‧BDI-II: Beck Depression Inventory II. Standard score of the Japanese population is 8.9±6.5 (mean±SD). Larger score indicates a more severe condition, ‧IRS: Interaction Rating Scale. Smaller score indicates a more severe condition.