Several sources of bias can plague research data and individual assessment. When cultural groups are considered, across or even within countries, it is essential that the constructs assessed and evaluated are as free as possible from any source of bias and specifically from bias caused due to culturally specific characteristics. Employing the…

For this study, European WAIS III performance subtest norms were compared to the original US norms. When European WAIS III raw scores were scored using US norms, the resulting perceptual organization index (POI) means were significantly higher than the processing speed index (PSI) means. The POI/PSI difference is roughly 5-10 points for the German…

The measurement of the performance of schools is complicated by the need to adjust for differences in input mixes. Schools may have a differential effect on the performance of different types of pupils. Rather than a single performance indicator, a system of indicators is needed. Characteristics of a good indicator system are identified. (KDP)

Datasets are often under-exploited by institutions, yet they contain evidence that is potentially of high value for planning and decision-making. This article shows how institutional data were used to determine whether the demographic background of students might have an influence on their performance: this is a matter of particular interest where…

This ongoing investigation was concerned with why some children were labeled gifted while others of identical measured ability were not. Each labeled "gifted" child was matched for age, sex, and socioeconomic status (SES) with two others in the same school class. The first matched child had an identical Raven's Matrices raw score, and…