Phone surveys suggest that about ____ of 12- to 17-year-olds met criteria for either post-traumatic stress disorder, major depressive episode, or substance abuse/dependence
a. 1% to 5%
b. 5% to 9%
c. 16% to 19%
d. 20% to 35%
c
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The tendency for people to persist in failing investments to avert loss, which causes losses to mount, is known as the
a. endowment effect. b. escalation effect. c. sunk cost principle. d. expectancy theory.
In explaining phantom limb, Melzack argued that:
A. the pain originates in the stump B. an image of the amputated limb exists in the spinal cord C. there is a body image in the brain that can generate sensations as coming from any body part D. the pain originates in the spinal cord
Which of the possible temporal relationships between the neutral stimulus and the unconditioned stimulus is least likely to be effective?
a. delay conditioning b. backward conditioning c. trace conditioning d. simultaneous conditioning
It is impossible to prove the alternative hypothesis to be true
Indicate whether the statement is true or false