Campos, LuísaNobre, BárbaraMorais, CatarinaVeríssimo, LurdesDias, PedroLuo, Jiutong2025-03-212025-03-212025-03-192076-0760http://hdl.handle.net/10400.14/52797The increasing presence of digital media has amplified the need to study media multitasking (both multiple media activities simultaneously and using media while doing non-media activities). Media Multitasking Scale (MMS) has been used to assess this phenomenon, but it is yet to be validated for a Portuguese population. This study analysed the validity of a Portuguese Version of the MMS (n = 171 Portuguese adolescents) based on inter-item correlations and confirmatory factor analysis. The results suggest changes in the original version to reflect more recent digital media tendencies for a better fit to the Portuguese adolescents’ sample. Additionally, results showed that Multitasking with Media and Non-Media and Concentration Without Multitasking were partially predictors of mental health problems (predictive validity), highlighting the scale’s utility in assessing media multitasking behaviours and their impact on psychological well-being.engMedia multitaskingPsychometricsAdaptationYouthDigital mediaresearch article10.3390/socsci14030187105001099637001453961000001