A professional baseball scout uses the batting average, on-base percentage, throwing ability, and running speed of amateur baseball players to predict their success as professional baseball players. This scenario best exemplifies the use of ________ as a predictor of the likelihood of success.
A. practicality assessment
B. multiple correlation
C. effect size
D. criterion variable assessment
Answer: B
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A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of ยต = 80 and a standard deviation of ? = 12 . After treatment, the effect size is measured by computing Cohen's d, and a value of d = 0.50 is obtained. Based on this information, what is the mean for the treated sample?
a. M = 6 b. M = 82 c. M = 86 d. Cannot answer without knowing the sample size
Evidence for an inherited tendency toward suicidal behavior comes from research involving
a. the human genome project. b. callers to suicide hotlines. c. adoption and twin studies. d. "psychological autopsies.".
The most common recommended form of exercise is cardiovascular training, especially:
a. Zumba and yoga c. tennis and golf b. golf and judo d. walking and increasing movement
Dermatomes are not entirely distinct because adjacent dermatomes ______.
A. actually function together as if one unit B. overlap completely C. share stimulation via different spinal nerves D. have their activity synchronized in the thalamus