Because test scores are ordinal not cordinal attributes, the average test score often is a misleading way to summarize the scores of a group of individuals. Similarly, correlation coefficients may be misleading summary measures of association between test scores. Proper, readily interpretable, summary statistics are developed from a theory of…

Samples in research on individual and group differences may be selected based on whole scores which differ from the population mean. Children are diagnosed in clinical practice with a whole score. These procedures produce regression to the population mean which can affect accuracy and adequacy of part score interpretations. (Author/DWH)

The nature of the testing situations should be carefully considered when interpreting the correlation between a personality test and a measure of social desirability and interpreting the actual scores on personality measures which seem strongly susceptible to the influence of social desirability. (Author)

The evidence used in condemning a test as racially biased is usually a validity coefficient for one racial group that is significantly different from that of another racial group. However, both variables in the calculation of a validity coefficient should be examined to determine where the bias lies. A study was conducted to investigate the…

Test anxiety scores from a 15-item internally consistent instrument were correlated with performance on an aggregate science test administered to 171 fourth- and 187 eight-grade students subdivided by sex and race. The interpretation of data possibly suggest that test anxiety is operating differentially for black and white students. (Author/PN)

This study is an attempt at a cohesive characterization of the concept of essay reliability. As such, it takes as a basic premise that previous and current practices in reporting reliability estimates for essay tests have certain shortcomings. The study provides an analysis of these shortcomings--partly to encourage a fuller understanding of the…

The idea that validity should be considered a property of inferences, rather than of assessments, has developed slowly over the past century. In early writings about the validity of educational assessments, validity was defined as a property of an assessment. The most common definition was that an assessment was valid to the extent that it…

The stability and change of verbal, non-verbal, and total IQ scores from group tests were investigated for students tested at Grades 1, 2, 4, 7, 9, and 11. Conclusions are discussed in detail, and the following recommendations are made: (1) Group intelligence tests should not be routinely administered in Grades 1 and 2 unless the users and…

This paper presents results of a study examining the relationship between the American Board of Surgery's In-Training Examination and its Qualifying Examination. 1982 Test scores on both examinations of 764 candidates in their fifth year of training as Chief Residents were analyzed. Descriptive statistics, correlations, and standard errors were…