Explain validity and reliability and distinguish between the 2 concepts

Explain validity and reliability and distinguish between the 2 concepts

Explain validity and reliability and distinguish between the 2 concepts. Be sure to provide an example of each concept. Which one is more important? Why? What are the three aspects of accurate measurement?

reference

Ellis, L., Walsh, A., & Hartley, R. D. (2010). Research Methods in Criminal Justice and Criminology : An Interdisciplinary Approach. Lanham, Md: Rowman & Littlefield Publishers. ISBN: 9780742564411

 

 

 

 

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Explain validity and reliability and distinguish between the 2 concepts.

                Validity is defined as the degree in which a certain study assesses or reflects accurately the particular concept the researcher is trying to measure.  On the hand, reliability is usually concerned with accuracy of the actual procedure or instrument.  Therefore, validity is always concerned with the success of a study at measuring all what is set out to be measured by the researcher. Nevertheless, reliability is concerned with giving…

APA

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