Thomas, C. L., & Dimitrov, D. M. (2007). Effects of a teen pregnancy prevention program on teens attitudes toward sexuality: A latent trait modeling approach. Developmental Psychology, 43(1), 173-185.

http://mres.gmu.edu/pmwiki/uploads/Main/Thomas2007.pdf

Lyons, H., Giordano, P. C., Manning, W. D., & Longmore, M. A. (2011). Identity, Peer Relationships, and Adolescent Girls' Sexual Behavior: An Exploration of the Contemporary Double Standard. Journal Of Sex Research, 48(5), 437-449.

http://www.bgsu.edu/downloads/cas/file65842.pdf

Abstinence-Only and Comprehensive Sex Education and the Initiation of Sexual Activity and Teen Pregnancy

http://www.planetwire.org/files.fcgi/7689_Ab_Only_Ed_Kohler_.pdf

Articles with Related Information

La Greca, A. M., & Harrison, H. M. (2005). Adolescent peer relations, friendships, and romantic relationships: Do they predict social anxiety and depression? Journal of Clinical Child and Adolescent Psychology, 34(1), 49-61.

Frank, S. J., Pirsch, L. A., & Wright, V. C. (1990). Late adolescents' perceptions of their relationships with their parents: Relationships among deidealization, autonomy, relatedness, and insecurity and implications for adolescent adjustment and ego identity status. Journal of Youth and Adolescence, 19(6), 571-588.
-This article adds information regarding parents involvement in identity formation to the peer relationships of the previous article (Available through Google scholar)

Shaw, S. M., Kleiber, D. A., & Caldwell, L. L. (1995). Leisure and identity formation in male and female adolescents: A preliminary examination. Journal of Leisure Research, 27, 245-245.

- This article explores gender differences.

We should try to find more recent articles, I am finding alot on this topic from the 1980's and 90's when it was "hot" topic. I will also look for me in regards to sexual identity.