reliability and validity of intelligence tests

Therefore, in settings where there are many individuals suspected of having ID, but a relative lack of specialists in ID or mental health, such as in justice facilities, it is impractical to perform individual intelligence tests on individuals within an entire group. However, the short form is similar to the full test in that it can only be performed on individuals, and requires special test equipment as well as experience in administering the test. A shorter version of the WISC, which uses certain subtest items to estimate overall intellectual development, is available.

Testing requires approximately 1–2 hours, with a trained examiner administering all testing materials. The WISC uses special test equipment, is administered on individuals, and in addition to overall intelligence, it can assess abilities in several domains, including verbal and performance IQ. The Wechsler Intelligence Scale for Children (WISC) is commonly used for intelligence testing.

Therefore, individually assessing intellectual development adequately and with flexibility in many settings is desired. In addition, from a point of social safety, it is also desirable to provide specific approaches to offenders with intellectual disability (ID) that reflect their intellectual development in order to reduce recidivism –. Therefore, in child-rearing and educational settings, providing services adjusted to the cognitive characteristics of a child, including intellectual development, is important. In fact, many published reports have suggested a high prevalence of deficit in intellectual function in offenders –. If delayed intellectual development in a child remains unnoticed and proper care is not received in a timely manner, maladjustment in society, loss of self-esteem, and behavioral problems may occur –.

This does not alter the authors’ adherence to PLOS ONE Editorial policies and criteria. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: Norio Ozaki is a PLOS ONE Editorial Board member. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.įunding: The research was conducted under the Nikkoso Foundation for Safe Society (SZ2013B-002).

Received: FebruAccepted: Published: June 18, 2014Ĭopyright: © 2014 Uno et al. PLoS ONE 9(6):Įditor: Kazutaka Ikeda, Tokyo Metropolitan Institute of Medical Science, Japan Citation: Uno Y, Mizukami H, Ando M, Yukihiro R, Iwasaki Y, Ozaki N (2014) Reliability and Validity of the New Tanaka B Intelligence Scale Scores: A Group Intelligence Test.

Reliability and validity of intelligence tests