If you are studying the effects of various drugs on ADHD, the independent variable is:
A. the drugs
B. ADHD
C. the subjects getting the drugs
D. the subjects getting the placebo
Answer: A
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What describes superficially valuing equality and respect for all people, but simultaneously opposing social change that would allow equality to occur?
A. old-fashioned prejudice B. benevolent prejudice C. modern-symbolic prejudice D. hostile prejudice
Preschoolers who spend more time engaged in __________ play are better at inhibiting impulses and regulating emotions
A) block B) sociodramatic C) gross-motor D) independent
The heroin on the streets today is ______ than that available in the 1930s and 1940s
a. weaker and less addictive c. weaker, but more addictive b. stronger, but less addictive d. stronger and more addictive
What is a hypothesis regarding why breast-fed infants tend to score higher than bottle-fed infants on measures of cognitive functioning?
a. They actually do not; this has been an artifact of research. b. Mothers who breast-feed are considerably more intelligent than those who do not breast-feed. c. Breast milk contains nutrients that promote early brain development d. Mothers play with their infants during breast-feeding.