Juan and Irene, psychology researchers, conduct a study to find out whether children between the ages of 4 and 13 prefer playing video games over participating in outdoor activities. They choose a sample of 50 children within the age group and interview them at the same time. They conclude that children between ages 4 and 8 prefer participating in outdoor activities over playing video games and children between ages 9 and 13 prefer playing video games over participating in outdoor activities. This scenario primarily exemplifies a developmental research design called:
A. natural research.
B. longitudinal research.
C. cross-sectional research.
D. laboratory research.
Answer: C
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Which of the following conclusions about expressed emotion (EE) is most accurate?
a. EE is a significant cause of schizophrenia. b. EE is a poor predictor of relapse in schizophrenic patients. c. EE is a better predictor of outcome for mood and eating disorders than it is for schizophrenia. d. EE is a significant cause of both schizophrenia and mood disorders.
Chris sings in a volunteer community chorus, because he enjoys the feeling he gets when he masters a complicated piece of music. His behavior reflects:
A. self-handicapping strategy B. intrinsic motivation C. overjustification D. extrinsic motivation
The Opium Wars occurred because __________ attempted to control or eliminate imports of opium by __________ traders
a. Britain, Chinese b. China, Indian c. China, British d. Britain, Indian
A(n) ______ is the sum of the products of a weight vector and a subject’s scores at each level of the independent variable.
a. standard-score b. trend c. contrast d. contrast score