Examlex
What term do sociologists use to refer to a group with an identifiable membership that engages in concerted collective actions to achieve a common purpose?
Internal Validity
The extent to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome.
Observed Score
The score actually obtained by an individual on a test or measurement.
True Score
The true score in psychometrics is an estimate of an individual's actual ability or trait level, free from measurement error.
Error Score
The difference between an observed value and the true value in data collections or experiments, indicating the amount of error in measurements.
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