Threats to internal validity include all of the following EXCEPT
A)selection bias.
B)quasi-experimental.
C)testing.
D)history.

Question

Quizplus · Accepted Answer

Quasi-experimental designs are not threats to internal validity, as they are designed to study cause-and-effect relationships in situations where true experimental designs are not feasible or ethical. Selection bias, testing, and history are all threats to internal validity.

Threats to Internal Validity Include All of the Following EXCEPT