The average score on a scale is the __________
a. mean
b. mode
c. median
d. standard deviation
Answer: A: mean
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In order to test the memory of rats, Stacey trained them to press a lever to earn food whenever they heard an 800-Hz tone. A week later, the rats were exposed to a variety of different tones in order to determine whether they would respond preferentially to the correct tone. Experiments like this demonstrate that the act of remembering can often be thought of as an instance of ? _____
A) ?generalization B) ?spontaneous recovery C) ?stimulus discrimination D) ?latent inhibition
Drug efficacy refers to
a. A drug's potency. b. The amount of drug that enters into the brain. c. The speed within which an initial therapeutic effect is obtained. d. The maximum clinical effect obtainable by a drug.
Which of the following statements about infertility is true?
a) In the West, from about the 4th century BCE to the 1800's, the reigning explanation for infertility was based on a theory that both women and men must produce a seed in order for conception to occur, and that the seed was released through orgasm. b) Rates of infertility in the United States have been inconsistent over the past century. c) Rates of infertility in the United States have been about 20%–25% of couples. d) A worldwide assessment of infertility between 1990 and 2010 found that rates had stayed consistent at about 30%–35%.
Discuss the problems suggested about the concept of hardiness from recent research
What will be an ideal response?