Cortisol Reactivity as a Moderator in the Relationship Between Home Chaos and Conduct Problems: Gender-Specific Evidence from Chinese Preschoolers.

This study aimed to explore the moderating role of cortisol stress reactivity in the relationship between home chaos and child conduct problems among Chinese preschoolers, and further reveal these moderating patterns in boys and girls. The researchers employed a longitudinal design, surveying 160 preschool-aged children (73 boys, 87 girls) and their parents at two separate time points annually. The findings revealed a positive correlation between home chaos and child conduct problems, with cortisol stress reactivity acting as a significant moderator. Further analysis showed that low cortisol reactivity amplified the association between home chaos and child conduct problems for both boys and girls, although the interaction between cortisol reactivity and home chaos reached statistical significance only for boys. These results highlight the importance of considering the interplay between individual physiological factors, such as cortisol reactivity, and environmental risks like home chaos, in understanding behavioral outcomes in young children and further underscore the necessity of tailored interventions that account for both biological and environmental influences on child development.