Measurement and Methodology-Statistical Procedures [GRE (Graduate Record Examinations) Psychology]: Questions 1 - 2 of 27
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Question 1
Question MCQ▾
A researcher wants to consider the effects of preparation on standardized test scores. She plans to compare the GRE scores of students who did and did not take a preparation course for the GRE. She also plans to compare the GRE scores of students who took preparation courses though Company X, Company Y, and Company Z.
The researchers found that students who took a preparation course with Companies X and Y scored higher on the GRE than students who did not prepare. But students who took a preparation course with Company Z scored no higher on average than students who did not take a preparation course. These results are an example of
Choices
Choice (5) | Response | |
---|---|---|
a. | a negative correlation | |
b. | a zero correlation | |
c. | a flat effect | |
d. | a main effect | |
e. | an interaction effect |
Question 2
Question MCQ▾
Statistics are used in psychological research to ________.
Choices
Choice (5) | Response | |
---|---|---|
a. | Evaluate the likelihood that the experiment caused the differences in behavior across treatment conditions. | |
b. | Prove the null hypothesis. | |
c. | Prove that the research hypothesis is correct. | |
d. | Justify the experimenter՚s conclusions. | |
e. | Quantify the dependent variable. |