Validity and Reliability: How to Assess the Quality of a Research Study

PUBLISHED 8 months ago BY The Conference Alerts ON Research
Validity and Reliability: How to Assess the Quality of a Research Study


Many psychologists and teachers complete research studies. How can you tell if a study was done well? This lesson will cover many criteria for a good quality study, including types of reliability and validity.
Introduction
Imagine you're an elementary school teacher, and you want to study whether you can predict how well children will learn spelling by assessing their personalities. You could complete this study in several different ways. Let's say that you give students a questionnaire that is supposed to measure a variety of different personality traits. Then you give the students a spelling test. How do you know if the study was done well or if it was of good quality?

This lesson will discuss ways that you can assess the quality of any research study, including studies that you read in professional journals, studies you hear about in the newspaper or studies that you design yourself.

This lesson covers the concepts of reliability and validity. In a different lesson, you'll also learn about reliability and validity, but it will be in a different context. Psychologists discuss reliability and validity when they talk about whether assessments are of good quality, such as whether a certain intelligence test really measures intelligence. Assessment in school is also relevant to reliability and validity, but there are different types of reliability and validity for assessments and for research studies. This lesson focuses on research studies only.

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