Research with dyads of parents and teens provides a way to compare differences and similarities in attitudes, opinions, and experiences within the same households. Capturing and comparing these two

perspectives can be helpful for planning policy interventions and communications related to helping both parents and teens deal with substance use issues. As part of a research series on teens and parents, the National Center on Addiction and Substance Abuse at Columbia University (CASA) conducted surveys of parents and teens using KnowledgePanel, Knowledge Networks‘ (KN) national probability-based web panel that is recruited through RDD and ABS. Data were collected on 456 parent/teen dyads. Examining these dyads, we uncover important differences between teen and parent perceptions about their relationship and the availability to and use of drugs and alcohol by teens. We find significant within pair differences on each of eight variables asked of both teens and parents. Looking at these data in total can in some cases obscure the degree of difference between parents and teens in the same household. While 7% of parents and 11% of teens overall report that half or more of the teen‘s friends drink alcohol, looking within pairs 30% disagree on how many of the teen‘s friends drink. One of the largest differences between parents and teens was perceptions of teen‘s likelihood to try drugs in the future, with 61% of parent/teen pairs in disagreement. Generally, parents are more likely than teens to expect that the teen will try drugs in the future. The full paper will present information on KN methodology, survey development, sampling methodology, and comparison to a parallel RDD survey. Presented results will identify demographic factors associated with greater or lesser differences among pairs and explore associations between parent/teen disconnect and risk factors for substance use.