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Learn about psychological testing, clinical interviews, and assessment methods.
A cycle showing the iterative nature of psychological assessment.
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Psychological assessment is a systematic process of gathering information about an individual's psychological functioning. It involves the use of tests, interviews, observations, and collateral information to answer referral questions, make diagnoses, inform treatment planning, and evaluate outcomes. Competent assessment requires understanding of psychometric principles, test administration, interpretation, and ethical considerations.
Reliability: Consistency of measurement
Validity: Does the test measure what it claims?
Standardization: Consistent administration procedures and normative data for interpretation.
Norms: Representative comparison groups for interpreting scores.
Types of Interviews:
Unstructured Interview: Flexible, open-ended exploration. High rapport but variable reliability.
Semi-Structured Interview: Standard topics with flexibility. Balances standardization and clinical judgment.
Structured Interview: Standardized questions and scoring. High reliability.
Common Structured Interviews: - SCID-5: Structured Clinical Interview for DSM-5 Disorders - MINI: Mini International Neuropsychiatric Interview - ADIS-5: Anxiety and Related Disorders Interview Schedule
Interview Components: - Chief complaint and presenting problem - History of present illness - Psychiatric history - Medical history - Substance use history - Developmental and social history - Family history - Mental status examination
The Mental Status Examination (MSE) assesses current psychological functioning:
Appearance: Grooming, hygiene, clothing, physical characteristics
Behavior: Psychomotor activity, eye contact, mannerisms
Speech: Rate, rhythm, volume, tone
Mood and Affect: - Mood: Subjective emotional state (patient report) - Affect: Observable emotional expression - Congruence, range, intensity, lability
Thought Process: Logic, coherence, associations
Thought Content: Delusions, obsessions, suicidal/homicidal ideation
Perceptions: Hallucinations, illusions
Cognition: Orientation, attention, memory, concentration
Insight: Awareness of illness
Judgment: Decision-making capacity
Wechsler Scales: - WAIS-IV: Wechsler Adult Intelligence Scale (16-90 years) - WISC-V: Wechsler Intelligence Scale for Children (6-16 years) - WPPSI-IV: Wechsler Preschool and Primary Scale (2.5-7 years)
WAIS-IV Structure: - Verbal Comprehension Index: Vocabulary, Similarities, Information - Perceptual Reasoning Index: Block Design, Matrix Reasoning, Visual Puzzles - Working Memory Index: Digit Span, Arithmetic - Processing Speed Index: Symbol Search, Coding - Full Scale IQ: Overall cognitive ability
Interpretation: - Mean = 100, SD = 15 - 68% of population: 85-115 - 95% of population: 70-130
Other Intelligence Tests: - Stanford-Binet Intelligence Scales - Kaufman Assessment Battery for Children (KABC-II) - Woodcock-Johnson Tests of Cognitive Abilities
Self-Report Inventories:
MMPI-3 (Minnesota Multiphasic Personality Inventory-3): - 335 true/false items - Validity scales detect response styles - Clinical scales (RC scales, PSY-5) - Extensive research base
PAI (Personality Assessment Inventory): - 344 items with 4-point response scale - Clinical, treatment, and interpersonal scales - Good for treatment planning
NEO-PI-3: - Measures Big Five personality traits - Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism - 240 items
Projective Techniques:
Rorschach Inkblot Test: - 10 inkblot cards - R-PAS: Rorschach Performance Assessment System - Controversial but researched
TAT (Thematic Apperception Test): - Story-telling to ambiguous pictures - Assesses needs, motives, interpersonal dynamics
Purpose: Evaluate cognitive functioning to detect and characterize brain dysfunction.
Domains Assessed: - Attention and concentration - Learning and memory - Language - Visuospatial abilities - Executive functions - Motor functions - Processing speed
Common Tests: - Trail Making Test: Attention, sequencing, flexibility - Wisconsin Card Sorting Test: Executive function, set-shifting - Rey Complex Figure: Visuospatial construction and memory - Boston Naming Test: Language/naming - Stroop Color-Word Test: Inhibition - California Verbal Learning Test: Verbal memory
Fixed vs. Flexible Batteries: - Fixed (e.g., Halstead-Reitan): Standardized, comprehensive - Flexible: Tailored to referral question
Interpretation: Compare to normative data, identify patterns, relate to brain-behavior relationships.
Functional Behavioral Analysis: - Identify antecedents, behaviors, and consequences (ABC) - Determine function of behavior
Observation Methods: - Naturalistic observation - Systematic behavioral coding - Self-monitoring
Rating Scales: - Behavior Assessment System for Children (BASC-3) - Conners Rating Scales (ADHD) - Child Behavior Checklist (CBCL)
Symptom-Specific Measures: - Beck Depression Inventory-II - Beck Anxiety Inventory - Yale-Brown Obsessive Compulsive Scale - PTSD Checklist for DSM-5
Strengths: Direct measurement, treatment planning, outcome evaluation Limitations: Reactivity, observer bias, situational specificity
Apply your knowledge of psychological assessment by practicing with educational test simulations. These interactive tools help you understand test structure, administration, scoring, and interpretation principles.
Distinguishing the two fundamental pillars of psychometrics.
| Reliability | Validity | |
|---|---|---|
| Definition | Consistency of measurement | Accuracy of measurement |
| Key Question | Is the result stable? | Does it measure what it should? |
| Relationship | Necessary for validity | Possible without reliability (but rare/useless) |
3 questions to test your understanding of this topic
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Meyer, G. J., et al. (2001). Psychological Testing and Psychological Assessment. American Psychologist, 56(2), 128-165.
Strauss, E., Sherman, E. M. S., & Spreen, O. (2006). A Compendium of Neuropsychological Tests. Oxford University Press (3rd ed.).
Weiner, I. B., & Greene, R. L. (2017). Handbook of Personality Assessment. Wiley (2nd ed.).
Ben-Porath, Y. S., & Tellegen, A. (2020). Minnesota Multiphasic Personality Inventory-3 (MMPI-3): Manual for Administration, Scoring, and Interpretation. University of Minnesota Press.
Wechsler, D. (2008). Wechsler Adult Intelligence Scale—Fourth Edition: Technical and Interpretive Manual. Pearson.
Lezak, M. D., et al. (2012). Neuropsychological Assessment. Oxford University Press (5th ed.).
Reynolds, C. R., & Kamphaus, R. W. (2015). Behavior Assessment System for Children, Third Edition (BASC-3): Manual. Pearson.
Hunsley, J., & Mash, E. J. (2018). A Guide to Assessments That Work. Oxford University Press (2nd ed.).
First, M. B., et al. (2016). Structured Clinical Interview for DSM-5 Disorders: Clinician Version (SCID-5-CV). American Psychiatric Association Publishing.
