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Psychometrics
Units 5-8 Developing Measures&Tests; ability tests, personality tests, attitude measures
40
Psychology
Undergraduate 3
03/02/2010

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Term
self-report, performance: multiple choice questions
Definition
(closed ended)
advantages: easily quantified, well structured
disadvantages: "best" given option may not be most fitting
Term
self-report, performance: constructed response
Definition
(open ended)
advantages: rich information
disadvantages: more difficult to quantify, more rigorous process
Term
item pool
Definition
a long list of items that may eventually be included in your test
Term
content validity
Definition
degree to which elements of an assessment instrument are relevant to and representative of the targeted construct for a particular assessment purpose
Term
operational definition of construct
Definition
establish parameters of scale
Term
relevance
Definition
are the items appropriate indicators of the construct? are they ambiguous? are they an accurate measure of the construct?
Term
representativeness
Definition
is the entire domain of the construct represented? are all aspects being covered?
Term
item writing: rational (top down)
Definition
scales developed to measure a specific construct that is defined before developing the test
Term
item writing: empirical (bottom up)
Definition
use as many items as possible, and let statistics determine which items should be used
Term
item writing: rational-empirical
Definition
rational provides guidance for item selection, empirical tests whether they should or should not be included
Term
most common forms of multiple choice
Definition
true/false
answer choices (from task)
likert-type scale
Term
social desirability
Definition
tendency to respond to items in a fashion that seems to be most socially acceptable
Term
quantifying rules
Definition
total score
average score
percent correct (ability testing)
Term
pilot test
Definition
ensure instructions, items and response scales are clear. make sure items are relevant and representative. revise and repeat
Term
dissimulation
Definition
response set in which an examinee attempts to distort responses in a particular direction
Term
norms
Definition
detailed record of test performance in a norm group, used to assess relative performance levels
Term
random responding
Definition
response set in which there is no apparent relationship between the content of items and examinee's responses
Term
response style
Definition
general tendency to agree or disagree with statements, independent of the content of those statements
Term
ability testing
Definition
tests to see how well a person can perform on a particular task (can be general, like IQ, or specific, like spacial abilities)
Term
ability tests: individual tests
Definition
one on one with examiner. scoring sometimes multimodal, or elaborate
Term
ability tests: groups tests
Definition
taken in large numbers, less interaction with examiner, easier scoring
Term
intelligence, definition
Definition
measure of general cognitive ability (g)
Term
What are lower level constructs that comprise IQ?
Definition
math, verbal, verbal expression/comprehension, memory ability
Term
personality
Definition
relatively consistent pattern of thought, feeling and behavior that characterizes each person as a unique individual
Term
personality test types: objective
Definition
structured, clear, unambiguous items, objectively scored
Term
personality test types: projective
Definition
unstructured, ambiguous items. focus on measuring unconscious covert aspects of personality
Term
method to develop tests
Definition
1. operational definition
2. generate pool of items
3. ensure content validity
4. determine response scale
5. create instructions
6. rules to quantify
7. pilot test and repeat
Term
internal reliability
Definition
checking to see whether or not items in a subscale correlate with items in another
Term
attitude
Definition
any belief or opinion that has an evaluative component--positive, negative, or mixed reaction to a person, object, or idea
Term
barnum effect
Definition
tendency to accept vague but positive feedback as accurate
Term
computer based test interpretation (CBTI)
Definition
automated system for interpreting the meaning of test scores
Term
computerized adaptive testing
Definition
testing method in which the selection of items is done via computer to provide the most efficient and appropriate test to each subject
Term
computerized test administration
Definition
using a computer rather than paper and pencil to administer a test
Term
basal level
Definition
lowest age level at which the examinee can consistently answer Stanford-Binet items correctly
Term
ceiling level
Definition
highest level at which the examinee can answer at least some Stanford-Binet items correctly
Term
performance IQ
Definition
norm-based summary score for the Performance Scale of the Wechsler series of tests
Term
point scale
Definition
ability test evaluated in terms of how many items are answered correctly, rather than in terms of age grouping of items
Term
standard age score
Definition
score on stanford-binet that compares an examinee's performance with the performance of others in the same age in the norm group; similar to IQ
Term
drawing tests
Definition
personality tests that use drawings of human figures or other stimuli to make inferences about personality
Term
validity scales
Definition
administrative scales that can be used to assess the consistency or appropriateness of scores on specific clinical or personality tests
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