If their research does not demonstrate that a measure works, they stop using it.Īs an informal example, imagine that you have been dieting for a month. Instead, they collect data to demonstrate that they work. Psychologists do not simply assume that their measures work.
But how do researchers know that the scores actually represent the characteristic, especially when it is a construct like intelligence, self-esteem, depression, or working memory capacity? The answer is that they conduct research using the measure to confirm that the scores make sense based on their understanding of the construct being measured. Describe the kinds of evidence that would be relevant to assessing the reliability and validity of a particular measure.Īgain, measurement involves assigning scores to individuals so that they represent some characteristic of the individuals.Define validity, including the different types and how they are assessed.Define reliability, including the different types and how they are assessed.
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