CPS Psychological Evaluation 2 — Questions and Answers
Question 1: Which of the following best describes the concept of 'base rate' in psychological assessment?
- The frequency with which a particular score occurs in the normative sample (Correct answer)
- The average score across all subtests of an instrument
- The minimum score required to establish a diagnosis
- The reliability coefficient of a standardized measure
Correct answer: The frequency with which a particular score occurs in the normative sample
Base rate refers to how commonly a particular score or characteristic occurs in a given population or normative sample, which is critical for accurate interpretation.
Question 2: During a psycho-educational evaluation, a student scores significantly higher on Verbal Comprehension than on Processing Speed. This discrepancy is MOST appropriately interpreted as:
- Evidence of intellectual disability
- A potential indicator of a specific learning disability or cognitive processing difference (Correct answer)
- Normal variation with no clinical significance
- Conclusive evidence of ADHD
Correct answer: A potential indicator of a specific learning disability or cognitive processing difference
A significant discrepancy between cognitive index scores (such as VCI vs. PSI) may indicate specific learning disabilities or processing differences that warrant further investigation.
Question 3: What is the primary purpose of conducting a clinical interview as part of a psycho-educational evaluation?
- To replace the need for standardized testing
- To gather contextual, developmental, and historical information that informs test interpretation (Correct answer)
- To determine the student's eligibility for special education without further testing
- To satisfy legal documentation requirements only
Correct answer: To gather contextual, developmental, and historical information that informs test interpretation
The clinical interview gathers background information about development, medical history, and presenting concerns that provides essential context for interpreting standardized test results.
Question 4: A psychologist administers the BASC-3 to a student's parent and teacher. The results show significantly elevated scores from the teacher but not the parent. This pattern MOST likely suggests:
- The BASC-3 is not a valid instrument for this student
- Situational variability in behavior, warranting investigation into school-specific factors (Correct answer)
- The parent's ratings should be discarded as invalid
- The student has a medical condition affecting school performance only
Correct answer: Situational variability in behavior, warranting investigation into school-specific factors
Cross-informant discrepancies on behavior rating scales often reflect genuine situational differences and prompt investigation of setting-specific factors rather than indicating instrument invalidity.
Question 5: Which statistical concept explains why a student who scores extremely low on an initial assessment tends to score somewhat higher on retesting, even without intervention?
- Practice effect
- Regression to the mean (Correct answer)
- Standard error of measurement
- Test-retest reliability
Correct answer: Regression to the mean
Regression to the mean describes the statistical tendency for extreme scores to move closer to the population average upon retesting, independent of any true change.
Question 6: When calculating a confidence interval around a obtained score on an intelligence test, which value is used?
- The reliability coefficient of the test
- The standard error of measurement (SEM) (Correct answer)
- The standard deviation of the normative sample
- The validity coefficient of the test
Correct answer: The standard error of measurement (SEM)
Confidence intervals around obtained scores are built using the standard error of measurement (SEM), which quantifies the expected variability in scores due to measurement error.
Question 7: A CPS specialist is evaluating a bilingual student and considers using a nonverbal intelligence test. The PRIMARY reason for choosing a nonverbal measure in this context is to:
- Avoid documenting the student's bilingual status in the report
- Reduce the influence of language proficiency on the assessment of cognitive ability (Correct answer)
- Obtain higher scores to avoid special education placement
- Comply with IDEA requirements for all bilingual students
Correct answer: Reduce the influence of language proficiency on the assessment of cognitive ability
Nonverbal intelligence tests are used with bilingual or ELL students to minimize the confounding influence of English language proficiency on measurement of cognitive ability.
CPS Psychological Evaluation 2
Which of the following best describes the concept of 'base rate' in psychological assessment?