Measurement and Methodology [GRE (Graduate Record Examinations) Psychology]: Questions 1 - 4 of 135
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Question 1
Question MCQ▾
Which of the following was NOT given by your text as a key question to ask in order to select an appropriate statistical test?
Choices
Choice (5) | Response | |
---|---|---|
a. | Are the subjects matched? | |
b. | How many independent variables are there? | |
c. | Is the experiment within or between subjects? | |
d. | What is the level of measurement of the dependent variable? | |
e. | None of the above |
Question 2
Question MCQ▾
Item sampling is a source of error variance within the context of
Choices
Choice (5) | Response | |
---|---|---|
a. | test scoring. | |
b. | test administration. | |
c. | test construction. | |
d. | Question does not provide sufficient data or is vague | |
e. | None of the above |
Question 3
Question MCQ▾
Variability produced by random errors, subject variables, and treatment effects is called ________.
Choices
Choice (5) | Response | |
---|---|---|
a. | Within-groups variance. | |
b. | The F ratio. | |
c. | Random variance. | |
d. | Error variance. | |
e. | Between-groups variance. |
Question 4
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 |