In the archived proxy-pretest design, the pretest is based on ____.
a. standardized test norms
b. pre-existing records for study participants
c. expected averages
d. informant recollections
Question 2
In psychological research, scale attenuation refers to situations in which
a. a particular result will not generalize across several dimensions.
b. a measurement scale is too restricted to measure differences between conditions.
c. performance in two conditions is equivalent.
d. an independent variable has an effect that is the same at all levels of the second independent variable.
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Consider the following hypothesis problem. n = 30 H0: 2 = 500 s2 = 625 Ha: 2 500 The test ...