Quiz 3 Part 1 Flashcards
Personality Tests: Projective Test - Advantages?
- Good tool for breaking the ice with a client (frequently used with children or with reticent adult clients). Clinician interpretations can initiate productive conversations
- Some skilled clinicians may be able to use them to get information not captured in other types of tests
- With a well-trained and talented clinician, can provide richer and more dimensional data than most objective tests
Personality Tests: Projective Test- Disadvantages?
- Expensive and time-consuming
- A psychologist cannot be sure about what they mean (obviously relies on clinician interpretations), so reliability is always a concern
- Other less expensive tests work as well or better for most purposes
4 Facts about projective tests?
- Projective tests provide B data
- Still used by many clinical psychologists, though not always for the same goals or theoretical reasons
- Validity evidence is scarce
- Most valid tests seem to the be the TAT and Rorschach (with one of two scoring methods
What is the definition of Objective Tests?
a personality test that consists of a list of questions to be answered by the subject as true or false or on a numeric scale
What is the validity and the subjectivity of objective test items?
Items are still not absolutely objective; they can be interpreted in different ways
3 Facts about Objectives tests
The principle of aggregation
The average of answers to several items increases stability and reliability
Use Spearman-Brown formula to calculate reliability if items were added
What is the rational method? (Objective test)
write items that seem directly, obviously, and rationally related to what is to be measured
- Based on a theory or sometimes less systematic
- Provides S data
- ***It is the most common form of test construction
What are 4 conditions of validity for rational method?
Items mean the same thing to the test taker and creator
Capability for accurate self-assessment
Willingness to make an accurate report
Items must be valid indicators of the construct
What is the factor analytic method?
- identify which items group together by using the statistical technique of factor analysis
- Generate a long list of objective items
- Administer these items to a large number of people
- Analyze with a factor analysis
- Consider what the items that group together have in common and name the factor
Limitations of factor analytic method?
- The quality of information from the factor analysis is limited by the quality of items (“Garbage in, garbage out); some types of items may be over- or under-represented.
- Difficulty and subjectivity of deciding how items are conceptually related (the “objectivity” of statistical complexity can conceal the interpretive nature of the factors)
- Factors don’t always make sense
Uses of the factor analytic method?
- Reduce list of traits to an essential few
- Refine personality tests
- Factors can be empirically validated
What is the empirical method?
identify items based on how people in pre-identified groups respond
Steps: gather lots of items; administer items to people already divided into groups; compare the answers of the different groups; cross-validation
Not based on theory; ignores item content
What is cross-validation?
Empirical Method?
determine whether the test can predict behavior, diagnosis, or category membership in a new sample
What is the basic assumption of the empirical method?
-certain kinds of people have distinctive ways of answering certain questions
–MMPI (Minnesota Multiphasic Personality Inventory) and SVIB (Strong Vocational Interest Blank)
Problems with the empirical method?
The empirical method: implications of ignoring item content/low face validity
Can include items that seem contrary or absurd
Responses are difficult to fake
Tests are only as good as the criteria by which they are developed and/or cross-validated: The test may not work at another time, in another place, and with different people
Can cause problems with public relations or the law: People who take the test can be skeptical about whether it really measures what it is supposed to measure. Problems with the law: based on asking questions that could lead to discrimination (e.g., of religion, sexual preferences)