Methods: The study sample includes 470 ethnically diverse EAs (19-23 years of age) and their caregivers drawn from a larger study investigating a family-centered substance use preventive intervention. The current study evaluates the construct of parent knowledge of marijuana use. Confirmatory Factor Analysis (CFA) was used to test the fit of a parental relationship quality latent construct based on four indicants of parent knowledge of substance use, family cohesion, frequency of parent–child communication, and quality of parent-child communication, using MLE procedures.
Results: Results from the analyses suggest that parents are likely to underestimate EA’s marijuana use. Additionally, parent knowledge of marijuana use is a promising indicant in a latent construct of parental relationship quality also comprised of family cohesion, frequency of parent–child communication, and quality of parent-child communication.
Conclusions: When evaluating parent’s knowledge of marijuana use, researchers should take care to note that parents are likely to underestimate their EAs marijuana use. Additionally, the construct of parent knowledge of marijuana use should be considered when using a latent construct of parental relationship quality. Finally, results from the current study underscore the need to further explore parenting behaviors in EA and how they contribute to EA marijuana use outcomes.