View
215
Download
0
Category
Tags:
Preview:
Citation preview
CHAPTER 3, ASSESSMENT FOR PSYCHODIAGNOSIS
PSY 266, Abnormal Psychology
ASSESSING ABNORMAL BEHAVIOR
• “…the process of gathering information and drawing conclusions about the traits, skills, abilities, mental functioning, and psychological problems of the individual, generally for use in developing a diagnosis.”
TOOLS FOR ASSESSMENT
The process: Observe Interview Neurological tests Psych. Tests and inventories
Which must be….
• All of these “Assessments” must be…• Reliable – measures same way each time
– Test-rest reliability (same person twice)– Internal consistency (split-half )– Interrater reliability (different raters – same
score?)
• Valid – does it measure what it CLAIMS to measure?
– Predictive? (of the future)– Criterion related? (really measuring something
else?)– Construct? (correlate with other tests?)
• Standardized (same administration/same comparison group)
(your “assessment”)
OBSERVATIONS
Controlled (in lab or office) Naturalistic (school, office,
home) Include interviews Reactivity might occur (observer
should be objective and unobtrusive.)
Reliable?Valid?
Standardized?
INTERVIEWS
Structured (checklist) Unstructured (e.g. Psych
Eval ) Questions Observations Tasks
Psychological Evaluation
PSYCHOLOGICAL TESTS AND INVENTORIES
Rorschach Inkblot Test
ANOTHER RORSCHACH
THEMATIC APPERCEPTION TEST (TAT)
ANOTHER TAT
Criticisms:
• Not standardized• Culture influences stories• Pictures tend to be negative• Based on Freud’s
“repression”
OTHER TESTS
• Sentence completion: My mother always ________.
• Draw a person:
• Self-report inventories:-- MMPI• Beck Depression Inv
entory• IQ: WISC, WAIS,
WPPSI• Stanford-Binet
Reliable? Valid?
NEUROLOGICAL TESTS
CT Scan – (x-rays) PET Scan –
(radioactive) EEG – (Brainwaves) MRI – (Magnetic Field)
DSM-IV
Shaky beginnings Allows mental health
professionals to talk to each other about patients/clients.
PSYCH EVAL
Five Axes from the DSM-IV Also look for Co-morbidity -more
than one Axis I, II, III disorders Severity of the disorder Remission
ProblemsLabels peopleCould lead to incorrect treatmentSelf-fulfilling prophecy (if patient doesn’t have)ignores how well a person functions
Psychological Evaluation
Recommended