# Static Analysis Interview Questions

1.
If the assumptions for conducting an ANCOVA are not met, what could you do?
2.
When conducting an ANCOVA in SPSS, which function would you select from the analyze drop down list?
3.
Which of the below designs would be best suited to ANCOVA?
4.
What problems do you foresee with the study described in question 2?
5.
Which of the below assumptions must be met in order to conduct ANCOVA?
6.
What is a grand mean?
7.
Consider the study in question 2. Which of the below questions would be pertinent to this analysis?
8.
You are conducting a study. The IV is attachment style. There are three groups of individuals with different attachment styles; these are secure, dismissing, and fearful. You want to explore whether these differ on their scores of relationship satisfaction. The DV is relationship satisfaction. You are aware, however, that relationship satisfaction is known to co vary with depression.

You conduct an ANCOVA with this data. The formula will remove the variance due to the association between which two variables?
9.
What are the two main reasons for using ANCOVA?
10.
Consider the hypothetical study presented in question 2. If you were conducting this analysis, what variable would you put into the covariate box?
11.
Refer to the example from question 2 again. If you were conducting your analysis in SPSS, what would the fixed factor be?
12.
You are conducting a study looking at the group differences in reading ability between three groups of children, all receiving different remedial assistance. You decide that ages will co vary with reading ability, so you do ANCOVA.

There are 40 children in each of the three groups. The mean reading score for the whole sample is 42.69. The mean for group 1 is 46.92, for group 2 the mean is 41.89, and for group 3 the mean is 41.05.

What is the grand mean?
13.
In the example in question 12 there are 3 groups to consider. If you found that the groups differed significantly on reading ability, what might you use to further explore these group differences?
14.
Consider the output displayed on p. 470. What is the F-Value associated with the effect of age?
15.
What would the degrees of freedom be if you were reporting the results of the effect of Age from the output on p. 470?
16.
Using the example in the text book (which begins on p. 471), which variable is the covariate in this study?
17.
The adjusted group mean for the DV has been adjusted to standardize it with the other groups based on the grand mean for the covariate.
18.
Look at the output on p. 470. What is the overall effect of age?
19.
Look at the output on p. 470. What is the overall effect of the grouping?
20.
Look at the output on p. 470. Which of the following statements is true of the effect of age and group differences?
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