When a researcher runs the same study a second time to see if he or she gets the same results, he or she is attempting to

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When a researcher runs the same study a second time to see if he or she gets the same results, they are attempting to replicate the results. This is important for establishing the reliability of the findings and ensuring that the results are not due to chance or spurious factors. Internal validity refers to the extent to which a study has controlled for confounding variables, while external validity refers to the generalizability of the findings to other populations and settings. Improving the results would require making changes to the study design or methodology to increase the validity or accuracy of the results.

When a Researcher Runs the Same Study a Second Time