Population Validity

Population validity is a type of external validity which describes how well the sample used can be extrapolated to a population as a whole.

This article is a part of the guide:

Discover 21 more articles on this topic

Browse Full Outline

It evaluates whether the sample population represents the entire population, and also whether the sampling method is acceptable.

For example, an educational study that looked at a single school could not be generalized to cover children at every US school.

On the other hand, a federally appointed study, that tested every pupil of a certain age group, will have exceptionally strong population validity.

Due to time and cost restraints, most studies lie somewhere between these two extremes, and researchers pay extreme attention to their sampling techniques.

Experienced scientists ensure that their sample groups are as representative as possible, striving to use random selection rather than convenience sampling.

Full reference: 

(Sep 16, 2009). Population Validity. Retrieved May 22, 2024 from Explorable.com: https://explorable.com/population-validity

You Are Allowed To Copy The Text

The text in this article is licensed under the Creative Commons-License Attribution 4.0 International (CC BY 4.0).

This means you're free to copy, share and adapt any parts (or all) of the text in the article, as long as you give appropriate credit and provide a link/reference to this page.

That is it. You don't need our permission to copy the article; just include a link/reference back to this page. You can use it freely (with some kind of link), and we're also okay with people reprinting in publications like books, blogs, newsletters, course-material, papers, wikipedia and presentations (with clear attribution).

Want to stay up to date? Follow us!