Using Piaget's (1970) theory of cognitive development, the present study ex
amines when children first begin to demonstrate team loyalty. An interview
and testing protocol was administered to children aged 5-6 and 8-9. Preoper
ational, transitional, and concrete operational children were capable of de
monstrating a psychological commitment to a favorite team that was resistan
t to change, but not the behavioral consistency indicative of loyalty. The
current study demonstrates that children form preferences for sports teams
early in life and that they are capable of forming a commitment to a sports
team as young as age 5. The present study is one of the first efforts to i
nclude a transitional phase in the assessment of cognitive development. Res
ults from the interviews showed that fathers were the most influential soci
alizing agent relative to introducing children to sports teams and that the
gender stereotype associating sports with males was prevalent among childr
en in both age groups.