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Pilot Exam Applied Data Analysis
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Pilot Exam Applied Data Analysis with 35 questions and answers
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1. ANOVA is to _______ as repeated-measures ANOVA is to _______.a) single sample t-test; between-group t-test
b) within-subject t-test; single-sample t-test
c) between-group t-test; within-subject t-test
2. A religion psychologist wants to know whether faith in God (measured on
a 20-point scale) can be predicted on the basis of gender, age, income,
and number of church visits in the previous year. Which of the following
techniques is most suitable for answering these questions?
a) regression analysis
b) ANOVA
c) repeated measures ANOVA
d) PCA
3. With regard to ANOVA, how many of the following statements are true?
I. The null hypothesis is false when all groups have the same mean.
II. If F = 0.13, the null hypothesis should always be accepted.
III. If F = 3.56, the alternative hypothesis should always be accepted.
a) 0
b) 1
c) 2 or 3
4. We can use confidence intervals to compute the probability that:
a) a population mean is equal to a specified value
b) a sample mean is equal to a specified value
c) a population mean is within a certain range of values
d) a sample mean is within a certain range of values
5. The repeated-measures ANOVA is designed to decrease this type of error
a) individual differences
b) uncontrolled environmental factors
c) unreliability of measures
6. In which of the following situations does a boxplot not have a lower stick?
a) When there are no outliers in the direction of the lower scores.
b) When more than 25 percent have the highest possible score.
c) When more than 25 percent have the lowest possible score.
d) When the value of the 25th percentile is equal to that of the 75th
percentile.
7. What is the function of a post hoc test?
a) Indicate whether any statistically significant group differences have occurred
b) Describe which groups reliably differ
c) Set the critical value for the F test (or chi-square)
8. Which of the following would lead to a statistically significant chi-square?
a) Approximately equal expected and observed frequencies
b) An observed frequency of zero in at least one of the groups
c) Discrepancy between expected and observed frequencies
9. Which measure do we use in order to get the unique proportion of
variance explained by a single predictor in a multiple regression analysis?
a) The squared multiple correlation of the predictor.
b) The squared zero-order correlation of the predictor.
c) The squared partial correlation of the predictor.
d) The squared semipartial correlation of the predictor.
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