John Watson's behaviorism focused primarily on _____, while Arnold Gesell's maturational perspective focused primarily on _____
a. behavior patterns; physical aspects of growth and development
b. physical aspects of growth and development; behavior patterns
c. heredity; biology
d. biology; learning
A
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In the study by Steinberg and colleagues of risk-taking and impulse control, _____________________________
a. levels of risk-taking peaked at ages 19 to 22 and levels of impulse control reached adult levels at ages 16 to 18. b. females rated themselves as more vulnerable to risk-taking than males c. levels of risk-taking peaked at age 12 to 15 and levels of impulse control reached adult levels at ages 18 to 22 d. males who engaged in risk-taking at a younger age continued risk-taking into adulthood
What is one step that women can take to prevent the onset of osteoporosis?
a) take two aspirin a day b) increase sleep time by napping c) switch to a low-fat diet before menopause d) maintain calcium intake at sufficient levels
Fred is afraid of spiders. He won't even watch a nature show on TV about them. When he sees a picture of a spider, he has a panic attack, but when he avoids looking at the image, his panic goes away. Fred's avoidance of spiders is being __________
a) extinguished, because he feels anxious after doing so. b) recovered spontaneously, because he will never get better. c) positively reinforced, because he is rewarded by his anxiety going down. d) negatively reinforced, because he is rewarded by his anxiety going down.
What two processes during the formation of sperm and eggs help explain genetic changes within a population?
What will be an ideal response?