The Central Limit Theorem states that the sampling distribution of means is
a. only available by inference
b. only available when sample sizes are less than 10
c. only available when the very high and very low means have been eliminated
d. approximately normal in shape
d
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Z scores and T scores differ in this characteristic
a. skewness b. frequency c. mean d. magnitude
The "negative" in negative reinforcement and negative punishment means that:
A) the target behaviour increases in frequency. B) a stimulus is removed upon the occurrence of the target behaviour. C) an unpleasant stimulus is presented upon the occurrence of the target behaviour. D) the target behaviour decreases in frequency.
In Dr. Brennan's research, if the value of one variable began to decrease as the value of the other variable began to decrease, this would indicate a ________ correlation
a. causal c. negative b. reliable d. positive
Emily is designing a research study to test the effects of a new treatment she has developed for substance use disorders using group therapy. Which study designs might she use?
A. A Narcotics Anonymous (NA) treatment is the control group; individual therapy is the experimental group. B. A Narcotics Anonymous (NA) treatment is the control group; Emily’s group therapy is the experimental group. C. Emily’s group therapy is the control group; individual therapy is the experimental group. D. Emily’s group therapy is the control group; a Narcotics Anonymous (NA) treatment is the experimental group.