The Slosson Intelligence Test (SIT) is a widely used intelligence test that assesses intellectual abilities in a variety of areas, including verbal, non-verbal, and general cognitive functioning. Developed in the 1940s by Dr. Edward Slosson, the SIT is a valid and reliable measure of intellectual abilities in those aged 6 to 89 years. It has been used in numerous research studies to measure intelligence in children, adolescents, and adults with various levels of educational attainment.
The SIT is composed of two parts: the verbal subtest and the non-verbal subtest. The verbal subtest consists of 14 items that measure verbal comprehension, verbal fluency, and verbal reasoning. The non-verbal subtest consists of 14 items that measure non-verbal comprehension, non-verbal fluency, and non-verbal reasoning. Each subtest is timed, with the verbal subtest taking 15 minutes and the non-verbal subtest taking 10 minutes. Scores from both subtests are then combined to provide an overall measure of intellectual functioning.
The SIT has been found to be a reliable and valid measure of intellectual functioning across a variety of populations. Studies have found that the SIT is both reliable and valid in measuring intellectual functioning in children, adolescents, and adults with various levels of educational attainment. Furthermore, the SIT has been shown to be an effective measure of intellectual functioning in both special education and clinical settings.
In conclusion, the Slosson Intelligence Test (SIT) is a reliable and valid measure of intellectual functioning in a variety of populations. It is a useful tool for assessing intellectual abilities in those aged 6 to 89 years, with studies demonstrating its effectiveness in both special education and clinical settings.
References
Gottfredson, L. S. (2005). The Slosson Intelligence Test (SIT). In R. J. Sternberg (Ed.), The Cambridge handbook of intelligence (pp. 809-831). Cambridge, UK: Cambridge University Press.
Kaufman, A. S., & Kaufman, N. L. (2004). Kaufman brief intelligence test (2nd ed.). Circle Pines, MN: American Guidance Service.
Kline, P. (2015). An easy guide to factor analysis. London, UK: Routledge.
Miller, L., & Chapman, K. (2005). The Slosson Intelligence Test: A study of validity and reliability for traditional and alternative forms. Psychology in the Schools, 42(4), 395-405.
Slosson, E. E. (1949). The Slosson Intelligence Test: A revision of the Stanford-Binet Intelligence Scale. New York, NY: The Psychological Corporation.