Examlex
A heat engine having an efficiency of 0.20 takes in 2000 J of energy from the hot reservoir in one cycle. In the same time, how much work will it perform?
Item-total Correlation
The statistical relationship between a single test item and the total score on the test, used to assess the item's quality.
Consistency
in research refers to the reliability or stability of measurements over time, across different contexts, or when using various methods of assessment.
Construct Validity
The degree to which a test or instrument accurately measures the theoretical construct or trait it is intended to measure.
Predictive Validity
The construct validity of a measure is assessed by examining the ability of the measure to predict a future behavior.
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