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Two main scales are in use, in both adult and adolescent populations: the 20-item self-reported Problematic Use of Mobile Phones (PUMP) scale, [17] and the Mobile Phone Problem Use Scale (MPPUS). There are variations in the age, gender, and percentage of the population affected problematically according to the scales and definitions used.
Rank Country/Region Total population Smartphone users Smartphone penetration 1 PRC 1430.00M 974.69M 68.4% 2 India 1420.00M 659.00M 46.5% 3 United States 338.29M
Nationally representative data of children and teens in the United States show that the daily average of screen time increases with age. [7] [8] TV and video games were once largest contributors to children's screen time, but the past decade has seen a shift towards smart phones and tablets. [9]
The laws regulating driving (or "distracted driving") may be subject to primary enforcement or secondary enforcement by state, county or local authorities. [1]All state-level cell phone use laws in the United States are of the "primary enforcement" type — meaning an officer may cite a driver for using a hand-held cell phone without any other traffic offense having taken place — except in ...
Two decades of evolution of mobile phones, from a 1992 Motorola DynaTAC 8000X to the 2014 iPhone 6 Plus. A mobile phone, or cell phone, [a] is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones (landline phones).
SAN FRANCISCO, CA – Doctors say there's an epidemic sweeping the nation and it's getting worse. Doctors are calling it text neck. "Text neck is where people are hunched over looking at their ...
Internet users are defined as persons who accessed the Internet in the last 12 months from any device, including mobile phones. [Note 1] Percentage is the percentage of a country's population that are Internet users. Estimates are derived either from household surveys or from Internet subscription data. [4]
United States – Laws regarding cell phone use while driving are set state by state. While no state bans the use of all cell phones for all adult drivers of non-commercial vehicles at all times, many states ban all cell phone use by young drivers and/or commercial drivers. Many states have a combination of bans of texting and hand-held cell ...