Personality starts to stabilize around age

Two Apgar ratings are given because

A) one is given by the pediatrician, and one is given by the labor and delivery nurse. B) one is for appearance, pulse, and grimace, and the other is for activity and respiration. C) some babies have trouble adjusting at first but do quite well after a few minutes. D) one is taken immediately after birth, and the other is taken just before the newborn is released from the hospital.

Some adolescent researchers use questionnaires or interviews to tap changes in interactions

between parents and youth over the course of adolescence. What is the primary problem with this method? A) They do not actually tap behavior; rather, they measure perceptions of behavior change. B) They are not usually very reliable assessments. C) These assessments may be difficult for adolescents to understand. D) The constructs measured by these assessments, such as "conflict", have not be operationally defined.