The Stanford-Binet Intelligence Scale: Fourth Edition (SB:FE; Thorndike, Hagen, & Saltier, 1986) represents a significant departure from earlier versions of the scale. In the 5 years since its introduction into the field of intellectual assessment, a number of validity studies have been conducted with the SB:FE. The results from these construct and criterion-related validity studies suggest that the SB:FE provides as valid a measure of general mental ability as existing tests. Support for the 4 factors hypothesized by the authors of the SB:FE is weaker. Research suggests that the SB:FE is a 2-factor test (Verbal, Nonverbal) for ages 2 through 6 years and a 3-factor test (Verbal, Nonverbal, Memory) for ages 7 years and older. Studies also suggest that the SB:FE can distinguish between groups of youngsters with differing intellectual abilities (e.g., mentally handicapped, gifted, neurologically impaired) and that the test correlates highly with scores on achievement tests. On the basis of validity information, recommendations for the use of the SB:FE are made. In its various revisions since 1916 the Stanford-Binet Intelligence Scale has been a mainstay of assessors for decades. It was the first published intelligence test to provide specific administration and scoring procedures. It was also the first American test to use the concept of the intelligence quotient (IQ). As time has passed, revisions in the Wechsler scales and the advent of new measures of intelligence (e.g.

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