Coding task performance in early adolescence: a large-scale controlled study into boy-girl differences

Sanne Dekker*, Lydia Krabbendam, Aukje Aben, Renate De Groot, Jelle Jolles

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    10 Downloads (Pure)


    This study examined differences between boys and girls regarding efficiency of information processing in early adolescence. Three hundred and six healthy adolescents (50.3% boys) in grade 7 and 9 (aged 13 and 15, respectively) performed a coding task based on over-learned symbols. An age effect was revealed as subjects in grade 9 performed better than subjects in grade 7. Main effects for sex were found in the advantage of girls. The 25% best-performing students comprised twice as many girls as boys. The opposite pattern was found for the worst performing 25%. In addition, a main effect was found for educational track in favor of the highest track. No interaction effects were found. School grades did not explain additional variance in LDST performance. This indicates that cognitive performance is relatively independent from school performance. Student characteristics like age, sex, and education level were more important for efficiency of information processing than school performance. The findings imply that after age 13, efficiency of information processing is still developing and that girls outperform boys in this respect. The findings provide new information on the mechanisms underlying boy-girl differences in scholastic performance.
    Original languageEnglish
    Article number550
    Pages (from-to)1-6
    Number of pages6
    JournalFrontiers in Psychology
    Publication statusPublished - 27 Aug 2013


    • information processing efficiency
    • processing speed
    • development
    • sex differences
    • adolescence
    • processing efficiency


    Dive into the research topics of 'Coding task performance in early adolescence: a large-scale controlled study into boy-girl differences'. Together they form a unique fingerprint.

    Cite this