It is widely accepted dogma that consequential decisions are better made with multiple measures, because using but a single one is thought more likely to be laden with biases and errors that can be better controlled with a wider source of evidence for making judgments. Unfortunately, advocates of using multiple measures too rarely provide detailed…

A total of 51 Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV) protocols, administered by graduate students in training, were examined to obtain data describing the frequency of examiner errors and the impact of errors on resultant test scores. Present results were generally consistent with previous research examining graduate…

Examined the extent of examiner error during administration of the Wechsler Adult Intelligence Scale (WAIS) by practicing school psychologists and school psychology students eligible for state certification as psychometrists. A number of examiner item scoring and administration errors were observed for numerous subtests. (RC)