Differences in attraction to same- and other-sex peers as a function of sex
, age, individual characteristics (i.e., aggression), and context were exam
ined in a longitudinal study of early adolescent boys and girls (N = 217) t
hat covered the transition from elementary school (Time 1) to middle school
(Times 2 and 3). Consistent with T. Moffitt's (1993) concept of the "matur
ity gap," attraction to aggressive peers, especially attraction to aggressi
ve boys among girls, increased with age and upon entry to middle school, as
did attraction to peers who stood out in the peer group in easily observab
le ways. Attraction to peers who presented features associated with good cl
assroom-based behavior decreased. These patterns are discussed in terms of
the developmental needs served by associating with particular peers.