Ch. Diagnosis & Assessment Flashcards
diagnosis
- consensus-based definitions and classifications based on symptoms and signs
- far from ideal; opposite of medical field
- DSM-5-TR
- diagnostic categories have evolved over time
advantages of diagnosis
- first step in good clinical care
- facilitates communication among professionals
- advances research for causes and treatments
- comorbidity
reliability
- consistency of measurement (0-1.0)
- 0.6-1.0 is good
- 0.65-0.7 is the standard
- assessment scores during the day should be similar
types: - inter-rater
- test-retest
- alternate forms
- internal consistency
interrater
two clinicians assess the same individual that make the same diagnosis
test-retest
pre and post test situation; when test scores are compared, they should correlate
alternate forms
multiple types of assessments for disorders and can be used to test for symptoms that correlate similar findings; converge on one diagnosis
internal consistency
scales may be multiple items and answers should cluster together from each question on the scale
validity
- are the tools we are using measuring what they are supposed to be measuring?
- unreliable measures → questionable validity
- reliability does not guarantee validity
- mental illness is like a moving target; it is always changing and needs constant assessment
-types:
content
construct
content validity
measure adequately represents the domain of interest (i.e., all symptoms of disorder)
construct validity
measure accurately represents the phenomenon
- multiple measures of the same domain
ex. sadness and depression
- distinguished from measures it should not be related to
ex. happiness and depression
diagnostic system of the american psychiatric association: DSM-5-TR
- diagnostic and statistical manual of mental disorders
- first edition published in 1952
- five revisions
- current edition: released in 2022
- continual refinement
what the DSM-5-TR provides
- diagnostic criteria
- description of associated features
- summary of research literature
- defines diagnosis on basis of symptoms
diagnostic criteria
each revision → more detailed and concrete
description of associated features
laboratory findings and results of physical exams
ex. scan of person who has possible schizophrenia has enlarged ventricles
summary of research literature
age of onset, course, prevalence, risk and prognosis factors, cultural and gender factors, differential diagnosis
defines diagnosis on basis of symptoms
our knowledge is not strong enough to organize around etiology
- chapters organized to reflect patterns of comorbidity (dual diagnosis) and shared causes
culture can influence
-risk factors
individualistic vs. collectivist
- symptom experience
invalidation
- stigma
less developed parts of the world
- willingness to seek help
men do not want to get help
- availability of treatments
DSM-5-TR cultural sensitivity
- discussion of culture-related issues for most disorders
- cultural formation interview questions for clinicians
- descriptions of how symptoms present across cultures
cultural concepts of distress
- DSM-5-TR Appendix 9
9 syndromes observed in specific cultures
shenjing shuairuo (China)
weakness, mental fatigue, negative emotions, sleep problems - cross-cultural approach
syndromes that can be identified across cultures - culture-specific approach
cultural concepts of distress are key in understanding disorders
criticisms of DSM
- too many diagnoses
- categorical vs. dimensional diagnosis
too many diagnoses
- comorbidity
- many risk factors increase risk for multiple disorders
- should common reactions be pathologized?
research domain criteria (RDoC)
- investigation of psychological variables relevant for many conditions
- use of basic science to develop a new classification system
hierarchical taxonomy of psychopathology (HiTOP)
syndromes that frequently co-occur → subfactors → higher-order dimensions