Abstract
In response to a study by Wessler (1970), further data concerning the accuracy with which examiners could estimate intelligence quotients was obtained. Each of 8 clinicians was asked to make predictions regarding the anticipated IQ scores of 38 psychiatric patients. Each tester also recorded length of acquaintance of each patient and rated each testing session along several rating scales. Correlations between various predicted and actual scores were highly significant. Also, sessions for which testers' pretest expectations were less closely fulfilled were ultimately rated by them as being less “successful” sessions. Results are discussed in terms of examiner effects and clinical expertise in prediction.
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