BCP Scoring Accuracy and Norms 2

Question 1

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?

Accepted Answer

Verify the sum matches the test record form's prorating rules

Answer

Convert raw scores to T-scores first

Answer

Subtract the mean from each subtest score

Answer

Apply a correction factor for test duration

Question 2

Which type of norm group is most appropriate when evaluating a 7-year-old child's reading performance for diagnostic purposes?

Accepted Answer

National age norms

Answer

Grade-equivalent norms

Answer

Local classroom norms

Answer

Criterion-referenced cutoffs only

Question 3

A raw score of 42 corresponds to a percentile rank of 84 in the norm table. What does this mean?

Accepted Answer

The examinee scored higher than 84% of the normative sample

Answer

The examinee answered 84% of items correctly

Answer

The examinee's score is 84 points above the mean

Answer

The examinee is in the 84th stanine

Question 4

When a normative table provides interpolated values between listed raw scores, what is the psychometrist doing when selecting the correct row?

Accepted Answer

Using the exact row corresponding to the obtained raw score

Answer

Averaging two adjacent scaled scores

Answer

Rounding up to the nearest listed score always

Answer

Applying linear regression to estimate the score

Question 5

An examiner mistakenly awards full credit on an item that should have received partial credit. What scoring error category does this represent?

Accepted Answer

Commission error — over-crediting

Answer

Omission error

Answer

Clerical transcription error

Answer

Basal rule violation

Question 6

Which statistical property of a norm table indicates how precisely a scaled score estimates true ability?

Accepted Answer

Standard error of measurement (SEM)

Answer

Skewness of the raw score distribution

Answer

Coefficient alpha of the total test

Answer

Interrater reliability of item scoring

Question 7

A norm table is stratified by age in 3-month intervals for children under 6. Why is finer age stratification used for younger children?

Accepted Answer

Developmental change per unit time is faster in early childhood

Answer

Younger children are harder to test

Answer

Older children have higher ceiling effects

Answer

Standardization samples are larger for young children