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Glossary

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Target/Initial Population
The target/initial population refers to all events for evaluation by a specific performance measure involving patients who share a common set of specified characteristics within a specific measurement set to which a given measure belongs. Draw all patients counted (e.g., as numerator, as denominator) from the target/initial population.

Test-retest Reliability Testing
Test-retest reliability testing assesses the extent to which a survey or measurement instrument elicits the same response from the same respondent across short intervals of time.

Time Interval
The time interval is the time frame used to determine cases for inclusion in the denominator, numerator, or exclusion. The time interval includes an index event and period of time.

Topped-Out
Topped-out, sometimes referred to as topped off, is when measure’s performance is so high and unvarying that measured entities can no longer make meaningful distinctions and improvements in performance.