Evidencias de validez y precisión del Inventario de Supervisión Parental en adolescentes mexicanos y su asociación con el consumo de sustancias

Introduction: parental supervision is the set of parental behaviors to obtain information about their children's behavior and has been shown to be a strong predictor of adolescent disruptive behaviors. Objective: to obtain the validity and precision evidence of the Parental Supervision Inventory (PSI) in two versions and to evaluate its association with licit (CSI) and illicit (CSIL) substance use. It was hypothesized that there would be differences in PSI by sex, age and type of consumption. Method: instrumental study with 1,105 adolescents from five public high schools in Guadalajara. A translation and back-translation of the ISP and cognitive interviews were conducted to assess their comprehension. The ISP and the CSL and CSIL were evaluated by means of Google Forms in the last month. An exploratory and confirmatory factor analysis was performed, internal consistency was estimated and the association of ISP with CSI and CSIL was estimated. Results: the PSI structure included four factors in its two versions with 21 and 13 items with adequate fit indices. Its internal consistency ranged from ω= .85 to .90. CSL of 10.7% and CSIL of 4.2% were identified with no differences by gender. Significant differences were identified between men and women in rules and supervision, as well as between nonconsumers, CSL and CSIL, and differences in coldness-rejection and perceived overcontrol between nonconsumers and CSIL. There were no differences by age. Discussion and conclusions: validity and accuracy evidence supports the use of ISP-21 and ISP-13 in Mexican adolescents. It was identified that poor supervision predicts the use of any substance. Poor supervision and absence of rules predicted licit substance use, and poor supervision, coldness-rejection and perceived overcontrol predicted illicit substance use.