Examlex
During each cycle, a heat engine takes in 4.0 J of heat, does 1.0 J of work, and expels 3.0 J
of heat. What is its efficiency?
Predictive Validity
The extent to which a score on a scale or test predicts future performance on a related measure.
Intelligence Test Scores
Numerical values derived from assessments designed to measure an individual's cognitive abilities in comparison to a normative population.
Normal Distribution
A symmetrical, bell-shaped frequency distribution curve where most occurrences take place near the average value and fewer occur as the distance from the mean increases.
Content Validity
The extent to which a test or measurement accurately represents all aspects of the concept it is intended to measure.
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