Autore
Toffalini, Enrico

Titolo
WISC-IV e disabilità intellettiva. L'uso dell'età equivalente
Periodico
Psicologia clinica dello sviluppo
Anno: 2019 - Volume: 69 - Fascicolo: 3 - Pagina iniziale: 423 - Pagina finale: 434

The WISC-IV is the most used battery for the assessment of intelligence in children. When used on individuals with intellectual disability, it may hit a floor effect. This implies an overestimation of total IQ and a flattening of the profile. Floor effect is a serious problem when IQ < 50. Two proposed methods to avoid floor effect are the z scores and equivalent age instead of the traditional scaled scores. The present study examines the pros and cons of using equivalent age (rather than z scores) to define the intellectual profile and level of children with intellectual disability, especially in severe cases. It also proposes an extrapolation of the equivalent ages below 6 years (not available from the WISC-IV manual).



SICI: 1824-078X(2019)69:3<423:WEDILD>2.0.ZU;2-L
Testo completo: https://www.rivisteweb.it/download/article/10.1449/95152
Testo completo alternativo: https://www.rivisteweb.it/doi/10.1449/95152

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