When your experiment is internally valid, then
A) you can generalize your results beyond the particular sample used.
B) you can draw cause-and-effect conclusions.
C) the experiment was replicated with a different sample.
D) there was a selection-history interaction.

Question

Quizplus · Accepted Answer

Internal validity refers to the extent to which a study is free from biases and confounding variables that could threaten the validity of the results. If an experiment is internally valid, then the researcher can be confident that the results are due to the independent variable and not to other factors. This means that the researcher can draw cause-and-effect conclusions from the results.

When Your Experiment Is Internally Valid, Then