True or False: The chi square is a nonparametric type of inferential statistic.
a. True
b. False
Ans: A
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Suppose that some researchers are writing up the results of their study, and they are reporting their interpretation of the data from an experiment. At this stage, they are likely to introduce bias if they
a. discuss only statistical significance and ignore practical significance. b. are influenced by researcher expectancy. c. emphasize practical significance far more than statistical significance. d. try to eliminate confounding variables.
One of the main reasons that information disappears from short-term memory is because of:
A. interference B. maintenance C. chunking D. encoding
Short-term memory can store __________ item(s), and the duration of storage is __________.
A. only one; approximately one hour B. an average of seven; about twenty seconds C. approximately twelve; over sixty seconds D. unlimited; unlimited
Which one of the following statements about the characteristics of a normal probability distribution is FALSE?
a. Most test scores cluster or fall near the middle of the distribution, forming what we refer to as the average or the central tendency. b. Most people will score near the middle of the distribution, making the center of the distribution the highest point. c. The curve can continue to infinity, and therefore the right and left tails of the curve will never touch the baseline. d. Approximately 68.2% of the population will score between the mean and 1 standard deviation.