Examlex
What are the two dimensions of product quality?
Measurement Error
The difference between the actual value and the measured value due to inaccuracies in data collection, recording, or analysis in the context of research or testing.
Test-Retest
The method of assessing the reliability of a test by administering the same test to the same subjects at two different points in time and comparing the scores.
Internal Consistency
A measure of reliability that assesses how consistently the items of a test measure a single construct or concept.
Coefficient Alpha
A statistical measure used to assess the reliability or internal consistency of a test or scale.
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