LPC Assessment and Diagnosis 2 — Questions and Answers
Question 1: Which assessment approach involves gathering information from multiple sources such as interviews, standardized tests, and behavioral observations?
- Projective assessment
- Multimodal assessment (Correct answer)
- Behavioral assessment
- Neuropsychological assessment
Correct answer: Multimodal assessment
Multimodal assessment gathers data from multiple sources and methods to provide a comprehensive and well-rounded picture of a client's functioning.
Multimodal assessment combines interviews, standardized tests, behavioral observations, self-report measures, and collateral information to build a holistic understanding of the client. This approach reduces reliance on any single data point and increases validity. It is especially important when diagnosing complex presentations or co-occurring disorders.
Question 2: A client scores 2 standard deviations below the mean on a standardized IQ test. This score places them in which percentile range?
- 10th percentile
- 5th percentile
- 2nd percentile (Correct answer)
- 16th percentile
Correct answer: 2nd percentile
A score 2 standard deviations below the mean corresponds to approximately the 2nd percentile in a normal distribution.
In a normal distribution, approximately 68% of scores fall within 1 SD of the mean, and about 95% fall within 2 SDs. A score 2 SDs below the mean therefore falls at roughly the 2nd percentile, meaning only about 2% of the population scores at or below that level.
Question 3: The MMPI-2 is best classified as what type of assessment instrument?
- Projective personality test
- Objective personality inventory (Correct answer)
- Neuropsychological battery
- Intellectual ability measure
Correct answer: Objective personality inventory
The MMPI-2 is an objective personality inventory using structured, forced-choice items with empirically derived scales.
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is an objective measure of personality and psychopathology. Clients respond to 567 true/false statements, and their responses are compared against normative samples. The test includes validity scales to detect response bias, making it widely used in clinical, forensic, and personnel settings.
Question 4: A counselor is assessing a client for PTSD. Which instrument is specifically designed to measure PTSD symptom severity?
- PHQ-9
- GAD-7
- PCL-5 (Correct answer)
- CAGE
Correct answer: PCL-5
The PCL-5 (PTSD Checklist for DSM-5) is a 20-item self-report measure specifically designed to assess PTSD symptom severity.
The PCL-5 maps directly onto the DSM-5 criteria for PTSD and measures symptom severity across the four symptom clusters: intrusion, avoidance, negative alterations in cognition and mood, and alterations in arousal and reactivity. It is widely used in clinical research and practice for screening, diagnosis, and treatment monitoring.
Question 5: Which DSM-5 diagnostic principle requires that a disorder not be better explained by another medical condition or substance use?
- Rule of parsimony
- Differential diagnosis
- Hierarchical exclusion rule (Correct answer)
- Comorbidity criterion
Correct answer: Hierarchical exclusion rule
The hierarchical exclusion rule in DSM-5 requires ruling out that symptoms are caused by a substance or medical condition before assigning a psychiatric diagnosis.
DSM-5 diagnostics employ a hierarchical approach: before assigning a primary psychiatric diagnosis, clinicians must determine that symptoms are not attributable to the physiological effects of a substance (drugs, medications) or another medical condition. This prevents misdiagnosis and ensures appropriate medical workup when warranted.
Question 6: When a counselor re-administers the same test to a client two weeks later and obtains similar results, this demonstrates which psychometric property?
- Content validity
- Construct validity
- Test-retest reliability (Correct answer)
- Internal consistency
Correct answer: Test-retest reliability
Test-retest reliability refers to the consistency of a measure over time when administered to the same individual under similar conditions.
Test-retest reliability is assessed by correlating scores from two administrations of the same test separated by a time interval. High test-retest reliability (r ≥ 0.80) indicates that the construct being measured is stable. It is especially important for assessments of traits rather than states, which may legitimately fluctuate over time.
