Chapter 4 Part 1: Reliability, Validity, and Utility Flashcards
The agreement between a test score or measure and the quality it is believed to measure.
Validity.
This refers to the degree to which an assessment tool produces consistent results when repeated measurement are made.
Consistency.
True or False. A weighing scale always measures a person to weigh 67kg when they are in fact 60kg.
The weighing scale is consistent but not valid.
True.
The four (4) different aspects of validity.
- Face validity.
- Content-related evidence for validity.
- Criterion-related evidence for validity.
- Construct-related evidence for validity.
This is not really validity at all because it does not offer evidence to support conclusions drawn from test scores.
Face validity.
This considers the adequacy of representation of the conceptual domain the test is designed to cover.
Content-related evidence for validity.
True or False: You are taking an examination with coverage on the first 6 chapters of Theories of Personality (example). Suddenly, a test item about a chapter not yet discussed in class showed up.
The test no longer has content-related evidence for validity.
True.
This tells how well a test corresponds with a particular criterion, and such evidence is provided by high correlations between a test and a well-defined criterion or measure.
Criterion-related evidence for validity.
The two (2) types of criterion-related evidence for validity.
- Concurrent validity
- Predictive validity.
This refers to the forecasting function of tests.
For example, the NMAT might predict how well a high school student will perform in college.
Predictive validity.
In this kind of validity, the measures and criterion measures are taken at the same time.
For example, a student with a learning disability might take a diagnostic test and their school tests in the same day to determine the relationship between their learning disability and performance in school.
Concurrent validity.
This is established through a series of activities in which a researcher simultaneously defines some construct and develops the instrumentation to measure it.
Construct-related evidence for validity.
This involves assembling evidence about what a test means by showing the relationship between the test and other tests and measures.
Construct validation.
The two (2) types of construct-related evidence for validity are?
- Convergence evidence.
- Discriminant evidence.
This refers to when a measure correlates well with other tests believed to measure the same construct.
Convergence evidence.