![]() ![]() Its degree of reliability has to do instead with the predictability of its relationship with whatever is being tested. It might always register three degrees too high, for example. How can validity be established Quantitative studies: measurements, scores, instruments used, research design. Note, however, that the thermometer does not have to be accurate in order to be reliable. A thermometer that lacks reliability would change even when the temperature does not. If the temperature in a room stays the same, a reliable thermometer will always give the same reading. Imagine that you’re trying to assess the reliability of a thermometer in your home. Four methods sociologists can use to assess reliability are the test-retest procedure, the alternate forms procedure, the split-halves procedure, and the internal consistency procedure.Good measurement instruments should have both high reliability and high accuracy. ![]()
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