Abstract：
BACKGROUND:Adolescents tend to overestimate the prevalence of substance use among their peers and these perceived norms are associated with their current and future use. However, little is known about how perceived norms change over time during middle school, a developmental period when adolescents are at-risk for initiating substance use. METHOD:We examined changes in perceived norms of alcohol, marijuana, and cigarettes over a two-year period among a large and diverse sample of 6th and 7th grade youth (N=6097; 50.1% female; 54% Hispanic). Participants completed a baseline survey and two subsequent annual surveys. Participants estimated the percentage of their peers they believed used each substance, as well as indicated levels of personal use, offers to use from peers, and exposure to peers who were using each substance. RESULTS:Perceived norms of all three substances increased over time. Increases were somewhat attenuated when controlling for demographic factors, personal use, and peer factors, but remained significant. Female adolescents and those reporting non-Hispanic White ethnicity experienced the greatest increase in perceived norms over time. CONCLUSION:Normative perceptions of substance use increase greatly during the middle school years, an effect which cannot be fully explained by demographics, personal use, or peer factors. Given that perceived norms are often associated with personal use, early interventions with middle school youth are warranted to prevent the growth of these influential factors during this developmental period.
journal_name
Drug Alcohol Dependjournal_title
Drug and alcohol dependenceauthors
Pedersen ER,Miles JN,Ewing BA,Shih RA,Tucker JS,D'Amico EJdoi
10.1016/j.drugalcdep.2013.08.008subject
Has Abstractpub_date
2013-12-01 00:00:00pages
647-53issue
2eissn
0376-8716issn
1879-0046pii
S0376-8716(13)00324-4journal_volume
133pub_type
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