Transcription of Validity and reliability in quantitative studies
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Validity and reliability in quantitative studies
Validity and reliability in quantitative studiesRoberta Heale,1 Alison Twycross2 Evidence-based practice includes, in part, implementa-tion of thefindings of well-conducted quality researchstudies. So being able to critique quantitative research isan important skill for nurses. Consideration must begiven not only to the results of the study but also therigourof the research. Rigour refers to the extent towhich the researchers worked to enhance the quality ofthe studies . In quantitative research, this is achievedthrough measurement of the Validity and defined as the extent to which a concept isaccurately measured in a quantitative study. Forexample, a survey designed to explore depression butwhich actually measures anxiety would not be consid-ered valid.
alternate-form reliability testing. Test–retest reliability is assessed when an instrument is given to the same participants more than once under similar circumstances. A statistical comparison is made between participant’s test scores for each of the times they have completed it. This provides an indication of the reliability of the instru ...
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