Wiley’s study described the achievement test scores and reading grades of a cross-sectional sample of elementary school students. He took the students’ scores on an achievement test and divided the students into three groups based on their scores: high, medium, and low. He then described the reading scores of the students in the three groups. Why did he do this?
a. To turn his study into an experiment by having a categorical independent variable
b. Because every research study has to have a categorical variable
c. To create a categorical variable from a quantitative variable
d. To create a quantitative variable from a categorical variable
Ans: c
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