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Terms in this set (26)
the extent to which variables measure what they are supposed to measure
extent to which respondents can tell what the items are measuring
The degree to which the content of a test is representative of the domain it's supposed to cover.
tries to ascertain the social implications of using tests
A property exhibited by a test that accurately measures performance of the test taker against a specific learning goal.
the degree to which the measures gathered from one tool agree with the measures gathered from other assessment techniques
The success with which a test predicts the behavior it is designed to predict; it is assessed by computing the correlation between test scores and the criterion behavior.
measure of agreement among observers on how they record and classify a particular event
a method for determining the reliability of a test by comparing a test taker's scores on the same test taken on separate occasions
alternate forms reliability
a procedure for testing the reliability of responses to questions in which subjects' answers are compared after the subjects have been asked slightly different versions of the questions or when randomly selected halves of the sample have been administered slightly different versions of the questions
internal consistency reliability
Reliability assessed with data collected at one point in time with multiple measures of a psychological construct. A measure is reliable when the multiple measures provide similar results.
Error due to characteristics of the test or testing situation
The part of an error score that is due to respondent circumstances
a scale in which objects or individuals are assigned to categories that have no numerical properties
a scale of measurement in which the measurement categories form a rank order along a continuum
a scale of measurement in which the intervals between numbers on the scale are all equal in size
measurement that has a natural, or absolute, zero and therefore allows the comparison of absolute magnitudes of the numbers
Classical Test Theory
observed score = true score + error
A test that describes the specific types of skills, tasks, or knowledge of an individual relative to a well-defined mastery criterion. The content of criterion-referenced tests is limited to certain specified objectives. The student's performance on this type of test helps the teacher to determine the specific criteria or skills on which the student needs help.
Tests where a student's performance is compared with a norm group, or a representative sampling students similar to the student. A person's score on a norm-referenced test describes how the student did in relation to the norm group. Tests results are reported in such formats as standard scores or percentiles.
Standard nines. Represent range. Based on percentile rank and divide normal curve into nine parts.
table of specifications
a list of instructional objectives and expected levels of understanding that guides test development
Types of Measurement Scales
nominal, ordinal, interval, ratio
the degree to which a test actually measures what it is supposed to measure
the extent to which a test yields consistent results. It should be the same over time, tasks, and graders.
What are the methodologies for determining reliability?
Test-retest, internal consistency, and inter-rater reliability
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