“…In an earlier phase of this study involving 2,726 boys and 2,775 girls, it was found that those children who were the most sex-typed at age 2.5 remained so at age 8 (Golombok et al, 2008). In the present study, conducted at age 13, sub-samples of extremely masculine boys and girls, extremely feminine boys and girls, and comparison groups of randomly selected boys and girls, categorized according to their PSAI score at age 3.5 years, were administered the Multidimensional Gender Identity and Sexual Questioning Scale (Carver, Egan, & Perry, 2004;Egan & Perry, 2001), an age-appropriate measure of sex-typed behavior. The aim was to examine the continuity of sex-typed behavior from the preschool to the adolescent years, i.e., to establish whether ''masculine'' boys and ''feminine''girls, and''feminine''boys and''masculine''girls, continued to show sex-typed and cross-sex-typed behavior, respectively, following the transition to adolescence.…”