All of the following impact internal validity except:
A) the model used resembles the disorder.
B) using a placebo control group.
C) using inconsistent methods to measure the dependent variable.
D) accidentally changing the dose of the study drug.

Question

Quizplus · Accepted Answer

Using a model that resembles the disorder is related to external validity, which concerns how well the findings can be generalized to other settings or groups. Internal validity, on the other hand, refers to the extent to which a study can establish a causal relationship between variables, unaffected by confounding factors. Choices B, C, and D directly impact the study's ability to establish such a relationship, thereby affecting its internal validity.

All of the Following Impact Internal Validity Except