Which of the following is the best description of how df is calculated for a two-way chi square test?
a. df of first variable plus df of second variable
b. df of first variable times df of second variable
c. df of first variable times df of second variable plus number of categories
d. df of first variable plus df of second variable times number of categories
Ans: B
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Answer the following statement true (T) or false (F)
The Premack principle applied to punishment is defined as _______________
Fill in the blank(s) with correct word
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Jennifer wants to see if the color of the testing room causes test anxiety. She asks 100 participants to come to a modified classroom, and as they walk in, she asks each person to choose either a testing cubicle painted bright red or a testing cubicle painted off white. On the basis of their choices, participants spend 20 minutes in one or the other cubicle solving challenging math problems.
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