Reliability and Validity Flashcards
What is Alternate forms reliability?
assesses the consistency or agreement of measurements obtained with different forms of a test, this is essential if different forms of a test are to be used interchangeably
Example: include how there are multiple forms of the NPTE but all are considered valid
What is internal consistency?
the extent in which items or elements that contribute to a measurement reflect one basic phenomenon or dimension
Example: a functional assessment scale should only include items that relate to patient’s physical function
What is intra-rater reliability?
consistency or equivalence of repeated measurements made by the same person over time
What is inter-rater reliability?
consistency or equivalence of measurements made by more than one person, this indicates the agreement of measurements taken by different examiners
What is Test-Retest reliability?
consistency or equivalence of repeated measurements made on the same individual on separate occasions
What is Face Validity?
degree to which a measurement appears to test what it is supposed to
What is Content Validity?
degree to which a measurement reflects the meaningful elements of a construct and the items in a test adequately reflects the content domain of interest and not extraneous elements
example: McGill pain scale has more content validity then visual analog scale because it also asks for location and quality of pain and not just pain level
What is Construct Validity?
degree to which a theoretical construct is measured by a test or measurement
What is Criterion-related validity?
validity established by comparing a measurement to either a different measurement often considered to be a “Gold Standard” or data obtained by difference forms of testing
What is Concurrent Validity?
a form of criterion related validity in which an interpretation is justified by comparing a measurement to a “gold standard” measurement at approximately the same time
What is Predicative Validity?
a form of criterion based validity in which the measurement is considered to be valid because it is predictive of a future behavior or event
An example is using the GRE as a way to predict Grad school success
What is Prescriptive Validity?
a form of criterion related validity in which the measurement suggests the form of treatment the person should receive
An example would be using Dix Hallpike test to determine if the Epley maneuver would be beneficial
