A discriminative stimulus signals when a particular response is likely to be followed by a certain type of consequence

Which of the following statements about adoption is true?

A) In Western Europe, more unwed mothers give up their babies than in the past. B) Adopted children tend to have fewer emotional difficulties than other children. C) In North America and Western Europe, the availability of healthy babies has declined. D) Fewer adoptive parents are accepting children who have known developmental problems.

In Western cultures __________ spend more time with and interact more effectively with infants

A) single fathers who live with their child's mother B) happily married fathers whose partners cooperate with them in parenting C) divorced fathers who see their children every other weekend D) happily married fathers who hold traditional gender-role beliefs