This study focuses on the development of face recognition in typically developing preschool- and school-aged children (aged 5 to 15 years old, "n" = 611, 336 girls). Social predictors include sex differences and own-sex bias. At younger ages, the development of face recognition was rapid and became more gradual as the age increased up until the age of 11, after which point the influence of age was insignificant. This development could not be sufficiently explained by the improvement in visual attention or design memory tasks. Girls were slightly better than boys at recognizing faces in the youngest age group, but the effect of sex was minor. No significant own-sex bias was found for girls or boys.