Summary.Previously reported correlations between extraversion‐introversion and scholastic attainment were examined and a consistently changing relationship was noted depending on the mean attainment level of the subjects. The relationship between reading attainment, intelligence, extraversion and neuroticism was then examined for groups of junior school children whose CA, MA and RA were relatively constant. It was concluded that there is a high correlation between extraversion and RA but a negligible one between extraversion and IQ when MA and RA respectively are held relatively constant. Neuroticism was negatively correlated with scholastic attainment, confirming other findings on school children. Finally, an explanation of the effects of personality upon scholastic attainment was suggeste