Which of the following individuals is the most likely to score high in impulsivity, according to research on smoking?
A) Daniel, who has a DD genetic makeup and a mother who smoked during pregnancy
B) Reba, who has a DD genetic makeup and a nonsmoking mother
C) John, who has a DD genetic makeup and a mother who smoked prior to becoming pregnant
D) Samantha, who has a DB genetic makeup and a mother who smoked during pregnancy
Answer: A
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Which of the following describes a completely counterbalanced within-subjects experiment?
a. Each group receives a different treatment. b. Each participant receives each treatment in the same order. c. A series of treatments is presented in every possible sequence. d. Participants receive a random order of treatment conditions.
Exposure to teratogens during the period of the zygote usually results in
a. major defects in bodily structure. c. improperly functioning body systems. b. minor defects in bodily structure. d. spontaneous abortion (miscarriage).