If the experimenter knows which participants are in the control group and which are in the experimental group, using a placebo control group sets up a(n) __________ experiment
a. incomplete
b. complete
c. single-blind
d. double-blind
Answer: C
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"Et al." as in Ray et al. refers to:
a. acting as scientist. b. primary investigator. c. and others. d. of the university.
The main question behind the study of depth and motion perception is
A. how the senses accommodate to incoming depth and motion cues. B. how the body in motion collects perceptual information. C. how the brain converts two-dimensional sensory input into three-dimensional perceptions. D. what parts of the brain are most involved with the interpretation of motion and distance.
Which of the following statements about sibling rivalry is true?
A) Sibling rivalry tends to decrease in middle childhood. B) Jealousy over attention from fathers predicts sibling conflict. C) To reduce rivalry, siblings often strive to be more like one another. D) Parental comparisons are more frequent for opposite-sex siblings who are close in age.
Patricia belongs to a large group of about 25 friends, including both boys and girls. This type of peer group would be referred to as a(n):
a. diffusion group b. identity group c. clique d. crowd