Like the other inferential statistics, the ______ statistic has a distribution of values when the null hypothesis is true with a different shape based on the degrees of freedom.
A. Pearson r
B. Cohen's d
C. chi-square test
D. expected frequency
Answer: C
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You will see this reported more often in research than the range or interquartile range.
A. standard distribution B. variability C. variance D. range
In the experiment by Prescott and Wilkie (2007), tolerance for pain
a. decreased in the presence of a sweet-smelling odor. b. increased in the presence of a sweet-smelling odor. c. remained the same whether or not a sweet-smelling order was present. d. decreased in the presence of a bad odor.
Ray takes a history test where he has to describe the various causes of World War I. This test requires _____ intelligence.
A) crystallized B) creative C) practical D) fluid
In an experimental design _____, whereas in a correlational design _____
a. there is only one variable (the independent variable); there are two variables (X and Y) b. there are two X variables; there are an X and a Y variable c. researchers assign each person an X score and then measure the score on the Y variable; researchers measure scores on variables that a participant has already experienced d. researchers measure scores on variables that a participant has already experienced; researchers assign each person an X score and then measure the score on the Y variable