Vocab Flashcards
Reliability
Consistency of an assessment instrument’s data across repeated administrations
Internal Consistence Reliability
Consistency of test items with one another bu measuring the same quantity/construct
Intra-rater Consistency
Individuals consistency in rating responses to various test items
Validity
Whether a test measures what it claims/intends to measure
Content Validity
Trst that includes items representing the complete range of possible items
Construct Validity
When test’s scores measure the construct they are meant to measure such as intelligence
Criterion Validity
Test’s scores effectively measure a construct according to established criteria
Concurrent Validity
(type of criterion validity) a test measures the criterion and the construct at the same time
Predictive Validity
(type of criterion validity) means test scores effectively predict future outcomes, as when aptitude tests predict future subject grades
Generalizability
the consistency of test scores over repeated administrations
(The results of one test can be generalized to apply to other tests with similar formats, content, and operations
Compensatory Grading
the practice of balancing out lower performance in one area or subject with higher performance in another
Noncompensatory grading
does not permit balancing of lower perfoemance in one subject with higher performance in another, but requires a similar standard of achievement in each area or subject
Cut score
a predetermined number used to divide categories of data or results from a test instrument
Standard Deviation
measures variability within a set of number
When interpreting assessment results it measures how much scores among a group of test-takers vary around the mean/average
Standard Score (z score)
represents the amount whereby an individual score deviates from the mean, measured in SDs
Domain
the identified scope of expected learning to be assessed
Item Response Theory
Performance on a test item is attributed to three influences
The item itself
The Test-taker
The interaction between the two
Mean
the average of a group of numbers
Median
Center-most score in a group
Mode
most frequent score in a set
Positive Skew
When the majority of a group of numbers, such as test scores, is concentrated toward the high end of the range/distribution with the minority “tail” of scores near the low end
Negative Skew
When the majority of scores is bunched near the lower end of the distribution, with the minority “tail” near the high end
Normal Curve/Bell Curve
resembles the shape of a bell because the largest number of scores collected around the center mean and the numbers of scores descending as they move away from the center a mean