This chapter describes the Phase I Basic and Circumstance-Specific Auxiliary protocols of the Peer Arena Retrospect (PAR) protocols. The Basic protocols are PAR-A (Adolescent), PAR-AA (Adolescent Alternative), and PAR-Aab (Adolescent Abridged) protocols, while Circumstance-Specific Auxiliary protocols include PAR-P (Parents), PAR-S or PAR-OS (Sibling/Older Sibling), PAR-T (Teachers and School Personnel), PAR-E (Environmental Other), PAR-G (Group Administration), and PAR-DG (Defensive Glitch). This chapter interprets the questions these protocols contain, including those that focus on peers and friendship, on comparative-act dynamics in the Peer Arena and their results, and impact on matters of interest to adolescents in the present and on their future goal setting. Other questions deal with whether adolescents prefer to be with friends, new or old, or whether they prefers avoidance; the adolescent perceptions of parents' opinions, attitudes, and feelings; importance of older and younger siblings; the degree of active parental support for adolescents' efforts to get together with age-mates; and parental attitudes about how many friends their adolescent has.