Fig. 2

Scatter plots of changes in the Wechsler Preschool and Primary Scale of Intelligence, 3rd edition (WPPSI-III) from pre- to post-intervention vs amount fish (blue)/meat (red) consumed in kilograms (kg) (dietary compliance). The estimated regression line from an adjusted mixed effect model including the interaction between intervention and compliance, together with regression coefficient (β) and a 95% confidence interval are presented. Panel a shows WPPSI-III Total raw score, b Verbal raw score, c Performance raw score, and d Processing speed raw score