If a sensitivity questionnaire yields a trustworthy diagnosis when completed at multiple periods and with different physicians, it suggests that it has good validity as a physical illness measuring tool. In order for research to be valid, it must be free from error and bias. Validity is a term used in research to refer to the extent to which a study measures what it is supposed to measure. Without these measures, it would be difficult to know whether or not the results of a study are accurate. Internal consistency reliability is a measure of how well different items on a test correlate with each other.īoth test-retest and internal consistency reliability are important in research. Test-retest reliability is a measure of how well a test yields consistent results over time. Internal consistency Test-retest reliability.There are many types of reliability, but two of the most important Because the weighing equipment displays the same weight every time, the results are reliable. This suggests that the questionnaire’s reliability as a measure of the condition is low.Ī patient’s weight is measured numerous times under identical settings. Several physicians utilize the same questionnaire with the same patient but arrive at different conclusions. A sensitivity questionnaire is used by a physician to diagnose a patient with a long-term chronic condition.
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