a trend toward significancep < 0.1
For set 3, age showed a trend toward significance, with the intercept being 0.19 for newborns ( [ − 0.03 , 0.40 ] , z = 1.72 , p < 0.1 ), and the decreases in effect magnitude were 0.07 for 6-month-olds, 0.36 for 7-month-olds, and 0.29 for 9-month-olds (Table S6 in the Supplementary Material ).