Which of the Following Best Addresses the Nature of a Threat

question 41

Multiple Choice

Which of the following best addresses the nature of a threat to internal validity that is caused by history?

• A) changes in how a variable is measured during the course of the study
• B) the differential dropping out of the participants from a study
• C) an unexpected or unrelated event occurring during the study that could influence responses
• D) physiological changes occurring in participants during the course of the study