Final answer:
One way to determine whether a measure is valid is through repetition of the results. If the same results are obtained consistently when an experiment is repeated, it increases the likelihood that the measure is valid. Face validity is another way to assess validity.
Step-by-step explanation:
Validity refers to the extent to which a given instrument or tool accurately measures what it's supposed to measure. One way to determine whether a measure is valid is through repetition of the results. If the same results are obtained consistently when an experiment is repeated, it increases the likelihood that the measure is valid.
For example, in scientific experiments, researchers strive to repeat the experiment multiple times to ensure that the results are consistent. If the same results are obtained each time, it indicates that the measure is valid. On the other hand, if the results vary significantly each time the experiment is repeated, it suggests that the measure may not be valid.
Face validity is another way to assess validity. It refers to the degree to which a measure appears to be valid on the surface. For instance, if a test is designed to measure reading comprehension and the questions on the test seem relevant and appropriate for assessing reading comprehension, it suggests that the measure has face validity.