Sample size: This is a measured number of people in a study that represents a larger population.Ĭontrol variable: This is the variable in research that remains consistent throughout the study. ![]() While reading about measurement validity and reliability, it may be helpful to review the following terms: Related: Quality Data: Definition, Measurements and Benefits Terms to know in measurement validity vs. For results to be valid, research data collection methods must also appear reliable and reproducible. ![]() It's important for methods and results to have validity so the research results can be useful and applied in various settings. Valid results display accuracy in research methods and results. ![]() Measurement validity is the extent to which the data or results of a research method represent the intended variable.
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