In order to overcome this problem, it is ideal if psychological tests are standardized.
A psychological test's standardization will assure consistency in both test administration and scoring methods. A test must be valid and reliable in order to be considered standardized, which means that scores acquired by a researcher on the same test at several periods must be consistent. Tests of intelligence, aptitude, and personality are a few examples of standardized tests used in psychology.
A skilled assessor administers psychological tests. Responses are assessed in accordance with precisely laid out rules. Scores are believed to represent individual or group variations in the construct the test is intended to examine.
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