The Stanford-Binet Intelligence Scales-Fifth Edition

The Stanford-Binet Intelligence Scales-Fifth Edition (SB-V) is the most recent version of the classic individualized assessment instrument that paved the way for scales like the Wechsler series of tests. It is less frequently used than the Wechsler Scales, but is becoming more popular among those who assess gifted children. In addition to a Full Scale Intelligence Quotient, this test provides much more information about strengths and weaknesses as well as learning styles than did previous versions. As with the Wechsler Scales, though, school resources are often not available to provide this type of individualized assessment for gifted children even though results can be valuable in educational planning.

The SB-V is a standardized measure comprised of ten subtests (verbal and nonverbal sections in each of five core areas). This instrument provides a Full Scale Intelligence Quotient (IQ) as well as a Verbal IQ, a Nonverbal IQ Score, and five Composite Scores in areas assessed. Scores are provided as standard scores with a mean of 100 and a standard deviation of 15, meaning approximately two-thirds of the general population will obtain a Full Scale IQ Score between 85 and 115 on the SB-V.

  • There are five areas examined by the SB-V, with each area being assessed both verbally and non-verbally. The areas are:
    • Fluid Reasoning
    • Knowledge
    • Quantitative Reasoning
    • Visual-Spatial Processing
    • Working Memory
  • The Full Scale IQ Score is a composite of the ten core subtests, taking into account verbal and nonverbal skills in all of the above areas.
  • An examinee moves through different level “testlets” for each domain being assessed.
  • One advantage this test has over the Wechsler scales is that it minimizes the impact of time as a factor in performance. This is much more of a “power” test than a “speed” test.
  • No substitutions are allowed (or available) for any subtest that is improperly administered or “spoiled” for any reason, as all ten are needed to derive scores. Prorating is needed in the case of a spoiled subtest.