With increasing age, adopted children's verbal ability scores become positively correlated with their adoptive parents' scores and positively correlated with their biological parents' scores

Less, more

Explanation:

Verbal ability score is the score that defines ability of expressing emotions, ideas, thoughts and feeling to others through verbal mode.As per assessment , test score define children's ability for expression.

According to the question, verbal ability score of children mostly tend to gravitate towards their biological parents as biological trait is present in bond.Therefore, as adopted children grow , their verbal ability score is more towards their biological parent and decrease correlation with adoptive parent.

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