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

Question

Quizplus · Accepted Answer

Instrumentation threats to internal validity arise when there are changes in the measurement method or tool throughout the study, which can lead to inconsistencies in the data collected.

Which of the Following Best Addresses the Nature of the Threat