Differential Item Functioning of the SON-R 2½-7[a] Non-Verbal Intelligence Test

• Autor(a) principal: Karino, Camila Akemi
• Data de Publicação: 2012
• Outros Autores: Laros, Jacob Arie, de Jesus, Girlene Ribeiro
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Psicologia (Universidade de Brasília. Online)
• Texto Completo: https://periodicos.unb.br/index.php/revistaptp/article/view/17548
• topic: Psicologia; Psicometria; Avaliação Psicológica; DIF; SON-R 2½-7[a]; Teste de inteligência; DIF; SON-R 2½-7[a]; Intelligence test

The presence of a considerable amount of items with differential functioning can make a test less valid.Therefore, the existence of Differential Item Functioning (DIF) in the intelligence test SON-R 2½-7[a] was investigated. Thisis the abridged edition of the SON-R 2½-7 with normatization and validation studies realized in various European countries.The data of the Brazilian normatization sample of 1,200 children were used to verify the presence of DIF in relation to genderand region using the IRT method. Of a total of 60 items, 5 items were indicated as having DIF for gender and 13 items ashaving DIF between regions. It was concluded that the majority of the items were adequate, which makes the use of the testfeasible in a national context.