The broad cognitive abilities defined by the Cattell-Horn-Carroll (CHC) theory have been shown to predict school achievement. However, the ecological validity of these constructs has not been studied in classroom settings. This study compares ratings by a sample of teachers (n = 53) and school psychologists (n = 86) of the importance of the CHC…

This study investigated whether measures of habituation and dishabituation in early infancy predicted later intelligence. Results were compared with those from other comparable studies. It was argued that the psychometric acceptability of infant cognitive measures needs to be demonstrated before they can be considered to be potential predictors.…

Analyzed published data on the Wechsler Adult Intelligence Scale (WAIS) to ascertain whether the Information and Vocabulary subtests can function as measures of intelligence. Concluded that the addition of more WAIS subtests will not result in any increase in predictive validity and these additional tests, therefore, lack incremental validity.…

Slosson Intelligence Test scores are the best predictor of Wechsler Intelligence Scale for Children (Revised) (WISC-R) IQ scores. But they are often higher than WISC-R scores and increasingly verbally weighted. A skilled teacher's classroom observation is as valid an indicator of need for in-depth assessment as screening tests. (JAC)

Examined the relationships between the McCarthy Scales General Cognitive Index, the McCarthy Screening Test, Kaufman's McCarthy short form, and the Peabody Individual Achievement Test using a sample of elementary students. Found the Estimated General Cognitive Index by Kaufman's short form was virtually identical to the McCarthy Scales Index.…

The scientific concept of intelligence has been heavily influenced by the technology of measurement. The variables which can be measured have been made the operational definition of intelligence. This approach differs from a deductive approach, in which a theory of cognition in general is used to derive the sorts of measurements that must be taken…