Instruments
This term describes the consistency of a measurement tool.
What is reliability?
This type of validity is demonstrated when two groups differ as theory predicts, like experts vs. beginners.
What is known groups validity or discriminant validity?
Reliability is often measured using this type of statistics.
What is a correlation coefficient?
This type of statistic involves a +/- value is used for both reliability and minimal detectable change
What is a standard error of measurement?
This level of measurement is used for yes-or-no responses
What is nominal?
This term describes a test's ability to detect meaningful change over time.
What is responsiveness?
Experts review test items to ensure all aspects of a concept are covered.
What is content validity?
If two raters give similar scores on the same test, this type of reliability is high.
What is interrater reliability?
The smallest change in a score tha tpatients perceive as beneficial is known as this.
What is a minimal clinically important difference?
This level of measurement uses equal intervals and has a true zero
What is ratio?
Scale and measurement are used interchangeably with this term.
What is instrument or assessment?
This type of validity is demonstrated with a new test correlates strongly with an established test.
What is convergent validity?
This reliability method checks consistency of results across two test administrations.
What is test-retest reliability?
If a patient's true condition or ability improves but their score does not, the measure lacks this.
That is responsiveness or minimal detectable change?
This type of interval would be used to rank someone's favorite places to get boba tea.
What is ordinal?
This is when scores are compared to a set standard or set of criteria.
What is criterion-referencing?
A thermometer that gives the same reading each time but is consistently off by 2 degrees ir reliable but not this.
What is valid?
A Cronbach's alph value of 0.9 suggests this about a test.
What is high reliability or strong reliability?
This is observed when the scores on a measure are not able to detect between changes at the lower level of the ability or trait being tested.
What is a floor effect?
What is interval?
These people study psychometrics.
Who are psychometricians?
When a self-report measure of function predicts real-world performance, it demonstrates this.
What is criterion validity or concurrent validity?
This type of reliability splits a test into halves to measure internal consistency.
What is split-half reliability?
This is the ability of the test scores to correctly identify people with a condition or impairment with high accuracy.
What is sensitivity?
Ratio and interval levels utilize this category of statistics.
What are parametric statistics?