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Threats to Internal validity Decide which specific threat(s) are reducing the internal validity of the following examples and provide an explanation for your decision. A
Threats to Internal validity Decide which specific threat(s) are reducing the internal validity of the following examples and provide an explanation for your decision. A researcher is interested in comparing two different teaching methods. One method is used at school A and the other method is used at school B. During the course of the study, the principal at School B is fired and replaced by a new principal
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