________ threats to internal validity refer to any events or influences beyond those of the researcher that occur during the experiment and have the potential to affect the experimental outcome.
A)Testing
B)Researcher bias
C)Premeasurement
D)Historical
E)Mortality

Question

Quizplus · Accepted Answer

Historical threats to internal validity are external events or changes that occur during the course of the study, which could affect the outcome of the study. These events could be natural disasters, social or political changes, or other external factors that are beyond the control of the researcher. They could also include changes in the subject population, such as demographic shifts or changes in attitudes or behaviors over time.

________ Threats to Internal Validity Refer to Any Events or Influences