Which developed countries are expected to experience the greatest declines in population by 2050?
a) Germany, Taiwan, and Japan
b) Taiwan, the Netherlands, and the United States
c) Japan, Canada, and the United States
d) Germany, the United States, and Japan
Answer: a
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David and Alexandra both take part in a research study that is investigating the effects of sleep deprivation on reaction time. David is kept awake for 24 hours straight, while Alexandra follows her normal sleep routine. In this study, David is part of the
a. hypothesis group. b. experimental group. c. control group. d. dependent variable group.
Sexual abuse
a. is sometimes hard to define. b. is usually just misinterpreted and harmless. c. is clear and unambiguous. d. rarely occurs between family members.
Acquiring new behaviors by modeling the action of others is
A. not important for motor development throughout the lifespan B. important for motor development throughout the lifespan C. not important for motor development throughout the lifespan AND social learning D. important for motor development throughout the lifespan AND social learning
What is one strength of the cross-sectional research design?
A. It provides evidence about individual trends. B. It cannot be influenced by cohort effects. C. It is not affected by participant dropout or practice effects. D. It permits longitudinal comparisons.