Validation of the Ten-Item Internet Gaming Disorder Test (IGDT-10) and its association with functional impairment in Brazilian gamers.

Objective: Despite growing recognition of gaming disorder as a mental disorder, there is still debate about how best to screen for it. This is especially relevant in countries where prevalence studies that could support evidence-based policymaking have not yet been conducted. This study aims to evaluate the psychometric properties of the Brazilian Portuguese version of the Ten-Item Internet Gaming Disorder Test (IGDT-10) and to explore its association with functional impairment.

Psychometric Properties of the Nine-Item Problematic Internet Use Questionnaire in a Brazilian General Population Sample.

The goal of the study is to adapt and examine the psychometric properties of the Brazilian version of the nine-item Problematic Internet Use Questionnaire (PIUQ-SF-9). A convenience sample of Brazilian internet users aged between 18 and 89 years (72.7% female, mean age 38.