Examlex
Which term refers to how well a product does what it is supposed to do?
Pearson Product-moment
A statistical correlation coefficient expressed as a value between -1 and 1, indicating the degree to which two variables are linearly related.
Correlation Coefficient
A measure that determines the degree to which two variables' movements are associated.
True Score
The true score is a theoretical concept in psychometrics representing the actual measure of the trait or characteristic being assessed, without the distortion of measurement error.
Measurement Error
The difference between the true value and the measured value due to inaccuracies or flaws in the measurement process or instrument.
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