Sue,an Instructor,wonders Whether Using a Red Pen to Correct Papers

question 47

Multiple Choice

Sue,an instructor,wonders whether using a red pen to correct papers is really necessary,as it has always seemed rather harsh to her.When her students complete a pretest,she randomly assigns them to a "Red Pen" group and a "Gold Pen" group,corrects their papers using the corresponding colored pens,and returns the students' papers.After her students complete the real exam,Sue compares the average scores of the Red and Gold groups.This is an example of a(n) ____.

• A)basic analysis of covariance experiment
• B)randomized block with homogenous groups experiment
• C)2 x 2 factorial experiment
• D)basic two group post-test only randomized experiment

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