Abstract: Objective · To explore the relationship between adolescent knowledge-attitude-practice (KAP), peer attachment and psychological resilience, and the moderating role of peer attachment in the relationship between adolescent KAP and psychological resilience. Methods · A stratified cluster sampling method was conducted, involving 5 105 subjects who were investigated by self-designed Adolescent KAP Questionnaire, Inventory of Peer Attachment and Resilience Scale for Chinese Adolescents. Statistical analysis and inference were performed using analysis of variance, t test, Pearson correlation analysis, hierarchical regression analysis and simple slope analysis. Results · The scores of target concentration, emotional control, positive cognition, family support and interpersonal assistance were more than 3 points for adolescents. Adolescent KAP, trust and peer communication had a significant positive predictive effect on target concentration, emotional control, family support and interpersonal assistance (all P<0.05). Peer estrangement was negatively related to all dimensions of psychological resilience (all P<0.05). Communication (B=0.007, SE=0.003, P=0.026) and peer estrangement (B=-0.010, SE=0.003, P=0.000) had the moderating effect on the relationship between adolescent KAP and psychological resilience. Conclusion · Adolescents have relatively better psychological resilience. Adolescents with higher adolescent KAP and greater peer attachment have better psychological resilience. Similarly, peer communication and estrangement can regulate the effect of adolescent KAP on psychological resilience.

Key words: adolescence, knowledge-attitude-practice (KAP), peer attachment, psychological resilience, moderating effect