What is the best way for a researcher, in an exploratory study, to show the correlations among all the variables?
a. Scattergram
b. Correlation ratio
c. Linear regression equation
d. Correlation matrix
e. Expectancy table
Question 2
A researcher collects the following measures on a sample of college students: scores on the SAT and the ACT, scores on an English composition test, high school class rank, scores on a noncognitive measure, whether or not students successfully completed the first year of college (pass-fail), and their GPA. Choose the statistical procedures that the researcher should use to answer the following questions. Do all the measures used in this study measure something in common?
a. Partial correlation
b. Factor analysis
c. Multiple regression
d. Discriminant analysis
e. Product-moment correlation
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