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Practice Quiz



 This activity contains 33 questions.

Question 1.
A study designed to establish the relationship between two variables is best described as

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Question 2.
Which of the following is NOT a purpose of correlational research?

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Question 3.
Which of the following is NOT a reasonable approach to developing a correlational research problem?

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Question 4.
What is the minimal sample size for a correlational study?

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Question 5.
What is the appropriate response to compensate for using a test with low validity and reliability as a criterion variable?

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Question 6.
Ms. Perkins calculated a correlation coefficient of .75. Which of the following reflects the best interpretation of this?

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Question 7.
Smaller sample sizes than recommended can be used when

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Question 8.
In a study of the relationship between math anxiety and math aptitude, which of the following correlation coefficients is reasonable to expect?

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Question 9.
If scores of assertiveness tend to be higher for students who have higher self-concept, which of the following is a reasonable correlational between assertiveness and self-concept?

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Question 10.
Approximately what percentage of variation in the criterion variable is accounted for by the predictor variable if the correlation between them is .49?

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Question 11.
A scatterplot of a correlation of .10 would look most like a

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Question 12.
Which of the following correlation coefficients could be statistically significant?

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Question 13.
Using a sample size of 30 subjects, a researcher found a correlation of .30. This relationship was not statistically significant. If the researcher were to triple her sample size, which of the following is most likely?

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Question 14.
Which of the following is NOT a purpose of a relationship study?

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Question 15.
A serious problem when conducting a relationship study is the use of

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Question 16.
A Pearson Correlation is used under which condition?

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Question 17.
The Spearman rho is used under which condition?

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Question 18.
Which of the following best describes the relationship between the popularity of a Top 20 song and the time since its release?

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Question 19.
A curvilinear relationship is measured by which correlation coefficient?

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Question 20.
Which of the following correlations might produce different results for the total sample and subgroups within the sample?

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Question 21.
The use of instruments with low reliabilities in relationship studies is known as.

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Question 22.
Low variability in scores will affect a correlation coefficient in which of the following ways?

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Question 23.

The possible range of scores on a math achievement test was 0-100. The observed range for a sample of 100 students was 80-90. The possible range for the same students' science scores was 0-100, and the actual range was 45-49. The correlation between math and science scores was .29. The researcher would be most justified in concluding that the strength of the correlation was affected by

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Question 24.
In a prediction study of the relationship between age and cognitive development, the criterion variable would be

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Question 25.
Which of the following is a purpose of prediction studies?

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Question 26.
Relationship and prediction studies differ with regard to

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Question 27.

A researcher studied the predictors of dropout rates of urban school students over many years. He found his set of predictor variables explained 89% of the variability in the likelihood to quit school. In a study of 10,000 students in five rural school districts, the predictor variables accounted for only 45% of the variance. What is the most likely explanation for this finding?

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Question 28.
When students' GPA in their freshmen year of college is predicted from their ACT scores and high school GPA, the analysis is known as

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Question 29.
Which of the following affects the accuracy of a prediction equation?

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Question 30.
Which research method allows the researcher to reduce the number of variables studied?

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Question 31.
A multiple regression predicting a categorical outcome is known as

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Question 32.
Correlating a set of four predictor variables with five criterion variables uses which analysis?


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Question 33.
Which correlational analysis is used to examine causal relationships?

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