A study on the effects of race on the length of prison sentences found no significant difference regarding the length of the sentences as a function of race (Spohn & Holleran, 2000). The independent variable in this study was race.

Question

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The independent variable in a study is the variable that is manipulated or categorized to observe its effect on a dependent variable, in this case, the length of prison sentences, making race the independent variable.

A Study on the Effects of Race on the Length