Test Development Flashcards
Define
Test revision
Action taken to modify a test’s content or format for the purpose of improving the test’s effectiveness as a tool of assessment
Definition
a plan of the number and type of items that are required for a test, as indicated in the test specification
Plan for item writing
Which item would be the best to remove?
Item 3
How do you go about forming a test concept?
- Review existing tests
- Review literature regarding existing tests
- Review the need for a test
- Decide to develop/adapt a test
Define
Rasch model
a model that relates the probability of response of a particular sort (e.g. right/wrong) to the difference between a person’s standing on a latent variable and the difficulty of the item
What are the advantages of a Likert scale?
- Degree of trait can be measured
- Lots of information
- Easy to use and administer
- Works best with strong (but not extreme) statements
What sort of factor analysis would you use when number of factors is known?
Confirmatory factor analysis (CFA)
Define
Model of measurement
the formal statement of observations of objects mapped to numbers that represent relationships among the objects
Definition
The decrease in item validities that inevitably occurs after cross-validation
Validity shrikage
Definition
the assignment of numbers to objects according to a set of rules for the purpose of quantifying an attribute
Measurement
Define
Plan for item writing
a plan of the number and type of items that are required for a test, as indicated in the test specification
Definition
Action taken to modify a test’s content or format for the purpose of improving the test’s effectiveness as a tool of assessment
Test revision
Definition
the extent to which the score on an item correlates with an external criterion relevant to the attribute or construct that is the subject of test construction
Item validity
Definition
a way of constructing psychological tests that relies on collecting and evaluating data about how each of the items from a pool of items discriminated between groups of respondents who are thought to show or not show the attribute the test is to measure; also an approach to personality that relates the reports that people make about their characteristic behaviours to their social functioning and thereby provide tools for personality prediction
Empirical approach
Give an example of a double-barrelled item
e.g. I support civil rights because discrimination is a crime against God.
Define
Classical test theory
the set of ideas, expressed mathematically and statistically, that grew out of attempts in the first half of the twentieth century to measure psychological variables; and that turns on the central idea of a score on a psychological test comprising both true and error score components
Definition
a way of constructing psychological tests that relies on both reasoning from what is known about the psychological construct to be measured in the test, and collecting and evaluating data about how the test and the items that comprise it actually behave when administered to a sample of respondents
Rational-empirical approach
What are the disadvantages of a written/essay format test?
- Narrow content
- Bluffing possible
- Hiding behind good writing
- Time consuming scoring
- Inter-rater reliability issues
Definition
the percentage of the total group that got the item correct
Optimal item-difficulty index
Which item is better? Why?
‘I get tired after soccer’ vs. ‘I get tired after exercise’
‘I get tired after exercise’
Define
Construct
a specific idea or concept about a psychological process or underlying trait that is hypothesised on the basis of a psychological theory
Define
Optimal item-difficulty index
the percentage of the total group that got the item correct
Why is it is often recommended to have the initial item poor reviewed by experts prior to administering the questionnaire to the target sample?
- Confirm or invalidate your definition of the construct (by asking how relevant is each item to what you intend to measure).
- Evaluate the items clarity and conciseness
- Identify other items that you have failed to include
Define
Test manual
the document that accompanies a psychological test and that records the way in which the test was developed, how the test is to be administered (including the groups for which it is relevant), information on the reliability and validity of the test when used for use for specific purposes, and norms for test interpretation
Definition
a family of theories that specifies the functional relationship between a response to a single test item and the strength of the underlying latent trait
Item response theory (IRT)
Define
Item characteristic curve
the term for a trace line in item response theory
Definition
the formal statement of observations of objects mapped to numbers that represent relationships among the objects
Model of measurement
Definition
the various forms the content of a psychological test can take
Item
Definition
Test is administered to a representative sample of test-takers under conditions that stimulate the conditions that the final version of the test will be administered under
Test tryout
These questions are based on which test assumption?
- What is the test designed to measure?
- Is there a need for this test?
- What content will the test cover?
Psychological traits exist
Definition
any of various similar model validation techniques for assessing how the results of a statistical analysis will generalize to an independent data set. It is mainly used in settings where the goal is prediction, and one wants to estimate how accurately a predictive model will perform in practice
Cross validation
Define
Attribute
the consistent set of behaviours, thoughts or feelings that is the target of a psychological test
What sort of factor analysis would you use to identify a manageable number of factors to extract?
exploratory factor analysis (EFA)
Define
Item
the various forms the content of a psychological test can take
Definition
refers to how many attributes a dataset has
Dimensionality
What is a paired comparision?
- Test-taker has to choose one of two options (e.g., a statement, object, picture) on the basis of some rule
- The value (e.g., 1 or 0) of each option in each paired comparison is determined by judges prior to test administration
Define
Latent trait
the hypothesised continuously and normally distributed dimension of individual differences that is the sole source of a consistent set of observable behaviours, thoughts and feelings, which is the target of a psychological test