ECBI Problem. There was a significant relationship between supports, ตัวแปรร่วม, interaction terms, and challenging aspects of fostering (R2= .18, F(11, 117) = 2.249, p < .05). After examining the value of R2, it was determined that 18% of the variance in challenging aspects of fostering can be มาประกอบ to the ตัวแปรร่วม, independent variables, moderator, and interaction terms.The terms associated with a significant slope were nurturing and attachment, ECBI problem, and the social support × intensity of behaviors interaction term. The negative relationship between social support and challenging aspects of fostering was stronger among those with higher ECBI problem scores. The positive relationship between social support and challenging aspects was stronger among those with lower ECBI problem scores, which means that foster parents who perceived lower levels of child were significantly more protected by the presence of social support (Fig. 3).