BCP Psychometric Concepts and Test Theory Questions and Answers 2

Question 1

In standardized testing, what does the 'basal rule' establish?

Accepted Answer

The entry-level below which all preceding items are credited as correct

Answer

The basal rule establishes that all items below the basal level are assumed correct, ensuring the examinee is not tested on items far below their ability level.

Question 2

T-scores have a mean of ___ and a standard deviation of ___.

Accepted Answer

50 and 10

Answer

T-scores are standardized to a mean of 50 and SD of 10, commonly used in personality assessment and many neuropsychological measures.

Question 3

Which correlation coefficient value indicates the strongest reliability?

Accepted Answer

0.92

Answer

Reliability coefficients range from 0 to 1.0; a value of 0.92 is the closest to 1.0 and therefore indicates the highest degree of consistency.

Question 4

Age-equivalent scores are considered psychometrically problematic primarily because:

Accepted Answer

They imply equal intervals between units that may not exist

Answer

Age-equivalent scores falsely assume equal intervals, meaning a 1-year difference at age 6 is treated as equivalent to a 1-year difference at age 14, which is statistically unsound.

Question 5

Scaled scores, as used for WAIS-IV subtests, have a mean of ___ and standard deviation of ___.

Accepted Answer

10 and 3

Answer

Subtest scaled scores on instruments like the WAIS-IV use a mean of 10 and standard deviation of 3, typically ranging from 1 to 19.

(BCP) Board Certified Psychometrist Practice Test

(BCP) Board Certified Psychometrist Practice Test

BCP Psychometric Concepts and Test Theory Questions and Answers 2