An educational psychologist wants to study the effectiveness of using the Internet as an instructional method used during academic courses.She designs a study in which one group of students is assigned to take a course in a standard classroom with a live instructor.Another group of students is assigned to take the same course over the Internet.The psychologist then compares the course grades for students in each of the two groups.In this case,the instruction group (regular class vs.Internet class)would be considered the:

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The instruction group (regular class vs. Internet class) is the variable that is being manipulated by the researcher, making it the independent variable. The dependent variable would be the course grades of the students, as they are being measured to determine the effectiveness of the instructional method. Correlational variables refer to variables that have a relationship with one another, but are not being manipulated by the researcher. Confounding variables are extraneous variables that may potentially interfere with the results of the study.

An Educational Psychologist Wants to Study the Effectiveness of Using