a systematic procedure for checking computational and clerical components of scoring (compu-check-form; ccf) was developed and evaluated for the wechsler adult intelligence scale - revised (wais-r; wechsler, 1981). senior undergraduates and m.a. graduate 世界杯2022赛程表淘汰赛 were trained to score fictitious wais-r protocols. sixty percent of the 世界杯2022赛程表淘汰赛 made errors and approximately 30% of the protocols contained errors. these errors frequently resulted in iq discrepancies. most iq inaccuracies were small, although 10% of the summary iqs on protocols with errors deviated between 4 and 12 points. a subsample of the 世界杯2022赛程表淘汰赛 were also trained to use the ccf. changes in error rates and corrections to summary iqs also supported the utility of the ccf. in a field trial, 6 of 7 practitioners who used the ccf detected errors on 15 of 47 wais-r protocols selected from their clinical files. methodological issues and implications of the results are discussed.