marginally significantp = 0.06
Regression analysis with age and culture as predictors of number of acquired skills in prone, showed that age is only a marginally significant predictor of number of skills (β = 0.10, p = 0.06, R 2 = 0.01) while culture significantly predicts the number of skills and significantly adds to the explained variance of age (β = 0.18, p < 0.001, Δ R 2 = 0.03).