Sex differences in academic achievement in US adolescents: the role of maturation and impulse control
Year: 2026
Type: article
Abstract: This study investigates mechanisms underlying girls’ academic advantage over boys by examining the role of physical and pubertal maturation. Using longitudinal data from the Add Health study, we analyzed whether sex differences in maturation explain girls’ higher grade 10 GPAs, and whether these associations are mediated by planfulness or impulse control. Path analysis revealed that females’ higher GPAs were partially explained by their advanced physical maturation as rated by the interviewer (explaining 2.4 percent) and greater impulse control (explaining 7.7 percent), controlling for cognitive ability and other potential confounders. Still, a significant direct effect of biological sex on GPA remained, suggesting additional unexplained mechanisms. Planfulness predicted GPA but did not vary by sex, and neither planfulness nor impulse control were associated with perceived relative maturation.
Source: Social Forces
DOI: 10.1093/sf/soag120
Authors: Liza Reisel, Atika Khurana
Institutions: Institute for Social Research, University of Oregon
Language: English
Subfield: Experimental and Cognitive Psychology
Field: Psychology
Domain: Social Sciences
Open Access status: hybrid
Estimated APC paid: $4,152
Funder: Norges Forskningsråd
Award: G2686571065
OpenAlex ID: W7204094225
