Scoring Accuracy and Norms Flashcards
7 cards from real BCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Scoring Accuracy and Norms flashcards as text
A psychometrist scores a 10-subtest battery and finds the sum of scaled scores is 87. What is the next step before converting to a composite score?
Answer: Verify the sum matches the test record form's prorating rules
Before converting subtest sums to composite scores, the psychometrist must verify the sum is complete and consistent with any prorating rules specified in the manual.
Which type of norm group is most appropriate when evaluating a 7-year-old child's reading performance for diagnostic purposes?
Answer: National age norms
National age norms provide a standardized comparison to same-aged peers, which is most appropriate for diagnostic evaluation of a child.
A raw score of 42 corresponds to a percentile rank of 84 in the norm table. What does this mean?
Answer: The examinee scored higher than 84% of the normative sample
A percentile rank of 84 means the examinee scored equal to or higher than 84% of individuals in the normative sample.
When a normative table provides interpolated values between listed raw scores, what is the psychometrist doing when selecting the correct row?
Answer: Using the exact row corresponding to the obtained raw score
The psychometrist selects the row that exactly matches the obtained raw score; interpolation is already built into published norm tables.
An examiner mistakenly awards full credit on an item that should have received partial credit. What scoring error category does this represent?
Answer: Commission error — over-crediting
Awarding more credit than warranted is a commission error, specifically over-crediting, which inflates the obtained score.
Which statistical property of a norm table indicates how precisely a scaled score estimates true ability?
Answer: Standard error of measurement (SEM)
The SEM quantifies the expected variability around an obtained score, indicating the precision with which it estimates the true score.
A norm table is stratified by age in 3-month intervals for children under 6. Why is finer age stratification used for younger children?
Answer: Developmental change per unit time is faster in early childhood
Because cognitive and developmental abilities change more rapidly in early childhood, finer age bands are needed to produce accurate normative comparisons.