An assessment of active versus passive methods for obtaining parental consent.
D000293:Adolescent; D035841:Behavioral Research; D003142:Communication; D003219:Confidentiality; D032962:Consent Forms; D030881:Disclosure; D005069:Evaluation Studies as Topic; D006805:Human Experimentation; D006801:Humans; D007258:Informed Consent; D008913:Minority Groups; D033242:Minors; D033282:Parental Consent; D019724:Presumed Consent; D012106:Research; D012107:Research Design; D012959:Socioeconomic Factors; D013334:Students; D019966:Substance-Related Disorders; D020458:Third-Party Consent; D035862:Vulnerable Populations
Biomedical and Behavioral Research; Empirical Approach; Los Angeles County