Explore BrainMass

Internal Validity in Research Methods

Can you give a brief example of a research study that is possibly effected by lack of internal validity by identifying a possible bias type?

© BrainMass Inc. brainmass.com August 20, 2018, 1:02 pm ad1c9bdddf

Solution Preview

An experiment that lacks internal validity is cause by the experimenter that did not control this variable. The main advantage of the experiment is that the experimenter can randomly assign treatment and remove all the confounding aspects. Internal validity is the ability to make causal conclusions. The huge advantage of randomized experiments over ...

Solution Summary

This response explains how a lack of internal validity can affect a research study.