Ronnie likes to play with his uncle Steve because his uncle always has new magic tricks. However, Ronnie has difficulty understanding how Steve can be his mother's brother as well as Uncle Steve. Ronnie's thinking is most characteristic of the ____ stage of cognitive development.?
a. ?concrete operational
b. ?formal operational
c. ?sensorimotor
d. ?preoperational
ANSWER:
d
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Self-serving responses to moral dilemmas, emphasizing one's own needs or interests, is especially common among
a. preschoolers. b. grade-schoolers. c. teenagers. d. mature adults.
Who is more likely to emphasize physical appearance as a basis for their self-esteem?
a. adolescent females b. adolescent males c. middle-aged males d. middle-aged females
Clark's eyes are brown in color. However, both his parents have eyes that are blue in color. According to the dominant-recessive genes principle, the most likely reason for Clark's eyes being brown in color is that
A. Clark's grandparents had brown-colored eyes. B. Clark's parents are carriers of genes contributing to brown eyes. C. Clark has a mutation in his genotype resulting in the change in eye color. D. Clark's family history shows that the family has a dominant gene for brown-colored eyes.
Dr. Wong conducts a correlational study and is able to determine that variation in his criterion variable relates solely to changes in his predictor variable. Dr. Wong's study is high in:
A. construct validity. B. internal validity. C. external validity. D. predictive validity.