This research tracked the daily smartphone usage and checking habits of 43 undergraduate students at a mid … smartphone usage and narcissism, and between usage and GPA. There also was a positive relationship between a user's smartphone …

according to the underlying theoretical assumptions and empirically tested in a qualitative study on smartphone usage. On the …

affects smartphone usage with a contextual approach to investigating the relationship among design features, functional … diversity has significant positive effect on both perceived usefulness and perceived ease of use of smartphone usage. However … how innovative design features influence user's attitudes towards smartphone usage from the affordance perspective.  …