The Pros and Cons of the Wechsler Adult Intelligence Scale
The Pros and Cons of the Wechsler Adult Intelligence Scale (WAIS-III) Introduction This paper discusses the pros and cons of the Wechsler Adult Intelligence Scale (WAIS-III). First, important definitional, theoretical issues, including the nature of intelligence, a brief history, and pros and cons are discussed. Next, the development, reliability, validity, and assets and limitations of the WAIS-III are examined. This is followed by discussion of the meaning of IQ scores, use of successive level interpretation and cautions and guidelines for administration. Last, subtests, assessing special population groups, short forms, profile forms, and what a report on intellectual assessment should contain are briefly discussed, followed by summary and conclusion.
The Nature of Intelligence Intelligence is an intrapersonal phenomenon, that is inside a person and it is generally agreed that the nature of this energy is unknown. Nevertheless, it may be known by its mental products (Groth-Marnet, 1997; Wechsler, 1939). Because there are many different ways to be intelligent there have also been many different definitions proposed (see Neiser, et al., 1996 for summary). A consensus on what constitutes intelligence is generally lacking. Alfred Binet (1908), the author of one of the first modern intelligence tests, defined intelligence as the inclination to take and maintain a specific direction, and capacity to adapt to achieve a goal outcome, and the power of autocriticism (Kaplan, & Saccuzzo, 2005). In contrast, David Wechsler, the developer of the Wechsler scales, defined intelligence as the aggregate capacity to act purposefully, think rationally, and deal effectively with the environment (Wechsler, 1958 as cited in Kaplin, & Saccuzzo). A review by Sternberg, (2005) of intelligence literature over the past century by psychologists and intelligence experts reveals two
The Nature of Intelligence Intelligence is an intrapersonal phenomenon, that is inside a person and it is generally agreed that the nature of this energy is unknown. Nevertheless, it may be known by its mental products (Groth-Marnet, 1997; Wechsler, 1939). Because there are many different ways to be intelligent there have also been many different definitions proposed (see Neiser, et al., 1996 for summary). A consensus on what constitutes intelligence is generally lacking. Alfred Binet (1908), the author of one of the first modern intelligence tests, defined intelligence as the inclination to take and maintain a specific direction, and capacity to adapt to achieve a goal outcome, and the power of autocriticism (Kaplan, & Saccuzzo, 2005). In contrast, David Wechsler, the developer of the Wechsler scales, defined intelligence as the aggregate capacity to act purposefully, think rationally, and deal effectively with the environment (Wechsler, 1958 as cited in Kaplin, & Saccuzzo). A review by Sternberg, (2005) of intelligence literature over the past century by psychologists and intelligence experts reveals two
References: Axelrod, B. N., Fichtenberg, N. L., Liethen, P. C., Czarnota, M. A., & Stucky, K. (2002). Axelrod, B. N., Ryan, J. J., & Ward, C. (2001). Evaluation of seven-subtest short forms of the Wechsler adult scale-III in a referred sample [Electronic version] Burtona, D. B., Ryan, J. J., Axelrod, B. N., & Schellenberger, T. (2002). A confirmatory factor analysis of the WAIS-III in a clinical sample with Caruso, J. C., & Cliff, N. (1999). The properties of equally and differentially weighted WAIS-III factor scores [Electronic version] Crawford, J. R., Johnson, B., Mychalkiw, B., & Moore, J. W. (1997). WAIS-R performance following closed-head injury: A comparison of the clinical utility of Donders, J., Tulsky, D. S., & Zhu, J. (2001). Criterion validity of new WAIS-III subtest scores after traumatic brain injury [Electronic version] Dori, G. A. Chelune, G. J. (2004). Education-stratified base-Rate Information on discrepancy scores within and between the Wechsler Adult Intelligence Scale Enns, R., & Reddon. (1998). The factor structure of the Wechsler Adult Intelligence Scale-Revised: One or two but not three factors [Electronic version] Kaufman, A. S. (2000). Seven questions about the WAIS-III regarding differences in abilities across the 16 to 89 year life span [Electronic version] Ones, D. S., Chockalingam, V., & Schmidt, F. L. (1995). Integerity tests: Overlooking facts, resolved issues, and remaining questions Ryan, J., Kreiner, D. S., Bartels, A., Tree, H., & Schnakenberg-ott, S. D. (2006). Thirty- second interval patterns for WAIS-III digit symbol and symbol search [Electronic Sternberg, R. J. (1997). The concept of intelligence and its role in lifelong learning and success [Electronic version] Sternberg, R. S. (1985). Implicit theories of intelligence, creativity, and wisdom [Electronic version] Educational implications. American Psychologist, 52, 1103-1114. Truch, S. (1993). WISC-III interpretation: Levels III and IV. Wechsler, D