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Identify the independent variable

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Reference no: EM132374054

A researcher was interested in examining how race of a teacher influences test performance of students. He randomly split a high school science class in half. Dr. Chen, an Asian man, taught Lesson 1 to Group 1. Dr. Healey, a Caucasian woman, taught Lesson 1 to Group 2. Then, students took the same exam. After students took the exam, the researcher compared their scores and found that Dr. Chen's group scored significantly higher on the exam compared to Dr. Healey's group, and concluded that race of teacher does indeed make a difference. 

  1. Identify the independent variable(s).
  2. Identify the dependent variable(s).
  3. Identify any extraneous/confounding variable(s).
  4. Given the confounding variable(s) you identified in #3, propose a method to "unconfound" the experiment (i.e., how would you fix the study?).

Reference no: EM132374054

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