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Validity and Reliability in Social Science Research
reliability, and internal consistency. There are three main concerns in reliability testing: equivalence, stability over time, and internal consistency. These concerns and approaches to reliability testing are depicted in Figure 1. Each will be discussed next. Test-retest reliability. Test-retest reliability refers to the temporal
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Validity and reliability in quantitative studies
ebn.bmj.comalternate-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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