Abstract
It has been undertaken a study to analyse the possible Differential Item Functioning (DIF) of the Problem Video game Playing (PVP; Tejeiro Salguero & Bersabé Morán, 2002) in Spanish and English adolescents. The presence of DIF in linguistic versions of a test can threaten the validity of inferences based on comparisons between groups. We conducted a DIF analyses on both versions of the PVP applying the Mantel–Haenszel and standardization procedures. A total of 1996 adolescents (52.5% from Spain and 47.5% from England) participated, from 11 to 18years old (M=14.14, SD=1.727) and gender unbalanced (male: 58.2%, female: 41.5%). It was administered a paper-pencil questionnaire from 2009 to 2010 in high schools with the previous permissions and guaranteeing the confidentiality. Results showed that most items functioned differentially, predominantly favouring the Spanish group. It is important to detect items with DIF to improve the validity of future assessments on playing video game problems.
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