MEASUREMENT RELIABILITY VALIDITY
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In statistics and research, internal consistency is typically a measure based on the correlations between different items on the same test (or the same sub scale on a larger test). It measures whether several items that propose to measure the same general construct produce similar scores.
Reliability refers to the consistency of a measure. A test is considered reliable if we get the same result repeatedly. For example, if a test is designed to measure a trait (such as introversion), then each time the test is administered to a subject, the results should be approximately the same.
Reliability refers to the consistency of a measure. Psychologists consider three types of consistency: over time (test-retest reliability), across items (internal consistency), and across different researchers (inter-rater reliability).
Reliability and validity are concepts used to evaluate the quality of research. They indicate how well a method, technique or test measures something. Reliability is about the consistency of a measure, and validity is about the accuracy of a measure.
Reliability. Reliability is the degree to which the measure of a construct is consistent or dependable. ... A more reliable measurement may be to use a weight scale, where you are likely to get the same value every time you step on the scale, unless your weight has actually changed between measurements. FOR MORE VISIT THE LINK BELOW
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