Janice is taking the SAT to meet an entrance requirement for a college. On her first attempt she scores way below average. She decides to review and then take the test again to see if she can improve her score.
She then scored higher the second time she took the test. This example illustrates the possibility of ________________ as a plausible rival hypothesis.
a. history
b. maturation
c. regression artifact
d. selection
Question 2
When using bivariate statistics, the researcher
A) can look at 2 variables together simultaneously and evaluate the statistical relationships between variables.
B) uses 8-10 variables at the same time.
C) uses a diagram and map together.
D) None of the above
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