Adolescents' Non-suicidal Behavior and Perception of Parents' Negative Emotional Expression and Family Communication

Participants of case group will be asked to respond to the demographic information，the Family Emotional Expressivity Questionnaire（FEEQ）、the Parent-Adolescent Communication Scale（PACS）、the Childhood Trauma Questionnaire（CTQ）、the Parental Bongding Instrument（PBI）、the Adolescent parent-child relationship intimacy questionnaire and the Ottawa Self-injury Inventory（OSI）.

Participants of control group 1 will be asked to respond to the demographic information，the Family Emotional Expressivity Questionnaire（FEEQ）、the Parent-Adolescent Communication Scale（PACS）、the Childhood Trauma Questionnaire（CTQ）、the Parental Bongding Instrument（PBI） and the Adolescent parent-child relationship intimacy questionnaire.

Participants of control group 2 will be asked to respond to the demographic information，the Family Emotional Expressivity Questionnaire（FEEQ）、the Parent-Adolescent Communication Scale（PACS）、the Childhood Trauma Questionnaire（CTQ）、the Parental Bongding Instrument（PBI） and the Adolescent parent-child relationship intimacy questionnaire.