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Computers and Technology, 05.08.2019 22:30 caggh345
Ahigh school teacher conducted a test of a new approach to teaching math. students were given a pretest when their math class began and a posttest at the end of the semester. the students' math performance improved. the teacher learned near the end of the semester, however, that in their science classes the students were using new computer software that included much of the math the teacher covered in his course. what threats to internal validity does the new computer software represent?
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Ahigh school teacher conducted a test of a new approach to teaching math. students were given a pret...
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