Validity is an essential concept for researchers to understand. It refers to the validity of a study, which means that its findings are valid and reliable enough to conclude from. Every time you use research in your work or when writing about others' research, validity will be something you have to consider, so being aware of validity now will be helpful in the future.
The validity of a study can be broken down into three categories: internal validity, external validity and construct validity. Each type refers to different aspects of how you can make conclusions from your
research or data. Inner truth is about whether or not there was enough evidence within one experiment/study for its results to be valid and reliable. External validity is about generalizing your experiment/investigation findings to a broader population or what those results may mean for people outside of those you directly studied. Construct validity has to do with whether something means what it's supposed to mean as far as measurements are concerned, especially if there were multiple ways in which an experiment was measured.
To ensure validity within your research, you must consider what type of validity applies and how validity is established and evaluated for each study. If a study has "strong" internal validity, there's more confidence in the results because they are accurate only to one experiment/study - this would be the ideal validity to have. Suppose a study has a "strong" external reality. In that case, there's more confidence in the results because they could be applied to other experiments and studies as well - this would also make for solid validity.
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