Examlex
Detecting non-randomness in errors can be done using:
Split-Half Reliability
A measure of internal consistency, often ascertained by comparing responses on odd-numbered test items with responses on even-numbered test items and seeing if the scores for these responses are correlated.
Coefficient Alpha
A method for evaluating internal consistency, calculated by averaging the intercorrelations of all the items on a given test. The higher the coefficient alpha, the higher the internal consistency.
Structural Abnormalities
Physical changes or anomalies in the body's structures, often identified through medical imaging or physical examination.
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