The Stanford-Binet Intelligence Scale has a long history of successful usage as the foremost psychometric instrument for the assessment of cognitive ability. Early versions of the instrument were concerned primarily with the prediction of school achievement and academic learning on the basis of an overall IQ score. The present fourth edition of the Stanford-Binet Intelligence Scale (Thorndike, Hagen & Sattler, 1986) is greatly advanced in design and construction over the previous Form L-M. It is, in this regard, both exhaustively comprehensive and concomitantly rather tedious and slow to administer, particularly when a detailed assessment is required. While the test authors claim that the full range of subtests takes only 60–90 minutes (no more than 13 of the 15 subtests can be given to any one individual and in practice, probably only six or seven may beadministered in any particular testing situation), the actual testing time may be significantly greater than this, depending on individual circumstances.