In an analysis of variance, what is a factor?
A) ?a dependent variable
B) ?an independent (or quasi-independent) variable
C) ?a treatment mean
D) ?a treatment total
B
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The first African American president of the APA was ____.?
a. ?Frances Cecil Sumner b. ?Charles Henry Turner c. ?Kenneth Clark d. ?Mamie Phipps Clark e. ?None of the choices are correct
As more and more students became drawn to Titchener’s lectures at Cornell, he ____
a. ?had more active involvement in all aspects of laboratory research. b. ?did not allow these students to do his research. c. ?became a popularizer. d. ?allowed these students to choose their own dissertation topics. e. ?became less actively engaged in laboratory research.
Most couples believe that their relationship ________________ (improves/deteriorates) over time
Fill in the blank(s) with correct word
Which is a sample chosen such that individuals are chosen with a specific probability?
A. probability samples B. random samples C. quota-samples D. convenience samples