Test Score Interpretation Flashcards
A _____ score indicates how well an examinee did on a test compared to how well examinees in the reference group did. Included in this category are percentile ranks and standard scores.
norm-referenced
A _____ indicates the percentage of examinees in the reference group who scored at or below the score obtained by an examinee. The conversion of raw scores to this is a nonlinear transformation since the this distribution is always rectangular (flat) regardless of the shape of the distribution of raw scores.
Percentile rack
_____ indicate how well an examinee did on a test in terms of standard deviations from the mean score obtained by the reference group and include z-scores, T-scores, IQ scores, and stanines. Converting raw scores to this is a linear transformation because the standard score distribution has the same shape as the raw score distribution.
Standard scores
The _____ distribution has a mean of 0 and standard deviation of 1.0, and this expresses an examinee’s score directly in terms of standard deviations from the mean
z-score
Z = (raw score - mean)/Standard Deviation
_____ have a mean of 50 and standard deviation of 10
T-scores
_____ have a mean of 5 and standard deviation of 2 and range from 1 to 9. With the exception of the two extreme scores (1 and 9), each one represents one-half of a standard deviation.
Stanines
_____ strive “to evaluate a person’s or a group’s degree of competence or mastery of a skill or knowledge domain in terms of a preestablished standard of performance.”
Criterion-referenced scores
_____ indicate the percentage of test items or test content that examinees answered correctly. When these are used to make decisions about examinees, a cutoff score is often set.
Percentage scores (this is different than percentile ranks, a norm-referenced score)
_____ provide information on an examinee’s expected score on another measure based on his/her obtained test score. In contrast to a regression equation, which is used to predict a single criterion score from an obtained predictor score, _____ indicates, for different predictor scores, the percent of individuals in the reference group (e.g., employees in the validity study) who obtained different criterion scores
Expectancy tables