![]() Checking how well these results correspond to common sense may help to learn whether they are valid. Specific techniques like test-retest help to calculate the correlation between the results of subsequent measurements and thus show whether these results are reliable. ![]() Do they produce correct results? Are they applicable for this subject? Both validity and reliability values make it possible to quickly evaluate how well your research approach works in a particular case. Five qualitative studies are chosen to illustrate how various methodologies of qualitative research helped in advancing primary healthcare, from novel monitoring of chronic obstructive pulmonary disease (COPD) via mobile-health technology, 1 informed decision for colorectal cancer screening, 2 triaging out-of-hours GP services, 3 evalua. ![]() Why is it important to know the difference between reliability vs validity? Conducting complex research typically requires some preparation, particularly to evaluate your data collection and analysis methods. A valid study measures what it is supposed to measure and its results can be applied to the population of interest.
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