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Module 3: Clinical Assessment, Diagnosis, & Treatment. Assessing Psychological Disorders. Purposes of Clinical Assessment To understand the individual To predict behavior To plan treatment To evaluate treatment outcome. Key Concepts in Assessment. Reliability Consistency is measurement
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Assessing Psychological Disorders Purposes of Clinical Assessment • To understand the individual • To predict behavior • To plan treatment • To evaluate treatment outcome
Key Concepts in Assessment • Reliability • Consistency is measurement • Examples include test-retest & inter-rater reliability • Validity • What an assessment approach measures & how well it does so • Examples include concurrent/descriptive and predictive validity • Standardization and Norms • Ensures consistency in the use of a technique • Provides population benchmarks for comparison • Examples include structured administration, scoring, and evaluation procedures
The Clinical Interview • Clinical Interview • Most common clinical assessment method • Mental Status Exam • Appearance and behavior • Thought processes • Mood and affect • Intellectual functioning • Sensorium (awareness of environment)
Clinical Interview (continued) • Confidentiality – between patients & mental health professionals; protected by law in most instances (i.e. except in Tarasoff’s law) • Types of interviews: unstructured & semistructured clinical interviews
Physical Examination • Rules out medical explanations for psychological disorders • Examples: toxic state, hyperthyroidism, hypothyroidism, brain tumors, drug ingestion
Behavioral Assessment • Focus on the present – Here and now • Direct observation of behavior-environment relations • Purpose is to identify problematic behaviors and situations • Identify antecedents, behaviors, and consequences • Can be either formal or informal • Self-monitoring vs. being observed by others • Problem of reactivity using direct observation
Psychological Tests • Psychological Testing • Must be reliable and valid • Projective Tests – Roots in Psychoanalytic Tradition • Project aspects of personality onto ambiguous test stimuli • Require high degree of inference in scoring and interpretation • Examples • The Rorschach Inkblot Test, Thematic Apperception Test • Reliability and validity data tend to be mixed
Psychological Tests (continued) • Personality Tests • Minnesota Multiphasic Personality Inventory (MMPI, MMPI-2, MMPI-A) • Extensive reliability, validity, and normative database • Intelligence Tests • Nature of intellectual functioning and IQ • First tests developed by Alfred Binet • Weschler developed more tests used with adults & children • Verbal and performance domains
Neurological Tests • Neurological tests are used to help diagnose cognitive impairments caused by brain damage (i.e. tumors, infections, head injury) or changes in brain activity • Neuroimaging: Pictures of the Brain • Allows for a window on brain structure and function • Imaging Brain Structure • Computerized axial tomography (CAT or CT scan) : utilizes X-rays • Magnetic resonance imaging (MRI): Utilizes strong magnetic fields & better resolution than CT scan
Neurological Tests (continued) • Imaging Brain Function • Positron emission tomography (PET) • Single photon emission computed tomography (SPECT) • Both involve injection of radioactive isotopes • Isotopes react with oxygen, blood, and glucose in the brain • Functional MRI (fMRI) – Brief changes in brain activity; provides structural & functional images
Diagnosing Psychological Disorders • Diagnosis – identifying a general class of problems together • Prognosis – likely future course of a disorder • Classification – most widely used by mental health professionals is the Diagnostic and Statistical Manual of Mental Disorders (DSM-5)
History of the DSM DSM-I: 1952 DSM-II: 1968 DSM-III: 1980; DSM-III-R: 1987 DSM-IV: 1994; DSM-IV-TR: 2000 DSM-5: 2013 The general consensus is that DSM-5 is largely unchanged from DSM-IV although some new disorders are introduced and other disorders have been reclassified
Criticisms of the DSM-5 • The Problem of Comorbidity • Defined as two or more disorders for the same person • High comorbidity is the rule clinically • Threatens the validity of separate diagnoses • Labeling Issues and Stigmatization
DSM-5 Diagnostic Categories • Neurodevelopmental disorders • Elimination disorders • Disruptive, impulse-control, and conduct disorders • Schizophrenia spectrum and other psychotic disorders • Bipolar and related disorders • Depressive disorders • Anxiety disorders • Obsessive-compulsive and related disorders • Trauma- and stressor-related disorders • Dissociative disorders • Somatic symptom and related disorders • Feeding and eating disorders • Sleep-wake disorders • Sexual dysfunctions • Gender dysphoria • Substance-related and addictive disorders • Neurocognitive disorders • Personality disorders • Paraphilic disorders • Other mental disorders