“…In a recent study, its reliability and internal consistency were analyzed in a sample of 1126 individuals aged 16-65 years, allowing the establishment of four categories of mobile phone use: casual use, regular use, people at risk, and problematic use, with predictive factors such as age, sex, educational level, and time of daily use [19]. This test has also been used in a population of 902 university students in Turkey [20], 1132 students aged 12-18 in Spain, and several countries in Latin America [21], in 412 Swiss teenagers [22], in 1529 adolescents aged 11-18 years in England using the Spanish version [23], in 468 university students in China [24] in 456 adolescents from several European countries, with a Cronbach's alpha of 0.85 and Kendall's Tau of 0.80 [25] and a multinational population of patients from southern Europe, South America, Mesoamerica, India and Pakistan, without finding differences between regions in terms of the psychometric analysis of the reliability of this test [26]. Finally, MMPUS was also used in a sample of 100 university students in Wyoming, United States; a relationship between the high leves of nomophobia and family history of alcoholism was found, which is a fact that has not yet been studied [27].…”