Professor Jeffrey assigned each of his students a number and selected 20 for his study by using a table of random numbers. Professor Jeffrey was interested in how the type of feedback received would affect the level of happiness in his students. The students were either praised or insulted and then the levels of happiness were measured by a questionnaire administered at the end of the study. What is the dependent variable of this study?
a. praise
b. feedback
c. students
d. happiness
Question 2
Calculate X2 with X1 = 2, X2 = 5.
a. 11
b. 29
c. 18
d. 49
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