Third or confounding variables are most problematic for which type of research design?
A. Survey
B. Correlational study
C. Case study
D. Interview
Answer: B
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Regarding psychoactive drugs, which of the following statements is FALSE?
a. Among adult Americans, marijuana is the most widely used illicit drug. b. The most commonly used drugs are alcohol and tobacco. c. About 10 percent of Americans currently use illicit drugs. d. The most popular reason for using drugs is to change levels of alertness. e. Psychoactive drugs are chemical substances that act on the brain to affect emotional or mental states.
Research on the consistency of personality in dogs suggests that:
A) personality in dogs varies unsystematically across the life span, casting doubt on the validity of "animal personality." B) personality is remarkably similar across dogs' life spans. C) agreeableness decreases with age. D) openness to experience decreases with age.
With the transition to early childhood, many children __________
A) have an increase in appetite due to slowed growth B) become unpredictable, picky eaters C) need larger quantities of food than adults require D) require different nutrients than adults need for a healthy diet
Why, when we introspect about the reasons underlying our attitudes or feelings, do we believe the explanations we arrive at seem reasonable?
a. The reasons behind them were previously suppressed, but now brought to light. b. The reasons behind them are generally correct and seem objective. c. The reasons behind them were easy to verbalize. d. The reasons behind them are self-serving, and that enhances self-esteem.