Ever feel anxious when you leave your phone at home? What about when your phone dies in public, and you haven’t got a charger? Or when you’ve realized you’ve misplaced it? You’re not alone. You might have nomophobia. What’s nomophobia? It’s a clever portmanteau of “no more mobile phone”, and it’s been diagnosed as an actual anxiety disorder. 

Scientists at the University of Missouri have found that cell phones have become so intrinsically attached to our daily lives that when we become separated them we “we experience a lessening of ‘self’” and "a negative physiological state.” In the study, researchers told subjects that they were testing out the reliability of a blood pressure cuff. The subjects were then asked to solve simple word problems, both with and without their phones, while researchers monitored their blood pressure levels and heart rates. 

Researches found that performance levels decreased when subjects were unable to access their phone. Russell B. Clayton, a doctoral candidate at MU School of Journalism and lead author of the study, further states that subjects reported feelings of unpleasantness and anxiety, along with experiencing increased heart and blood rates. Their findings will be published in August edition of Computers in Human Behavior

In addition, Caglar Yildirim and Ana-Paula Correia have developed a questionnaire to determine your level codependency on your phone. They calcuated the results along four dimensions: 

 Not being to communicate, or rather the feeling of not being able to communicate with people, or the ability to use services that will allow you to instantly communicate. 

 Losing connectedness of being disconnected from one's social identity.

 Not being able to access information, which amounts to the loss of pervasive information available on smartphones and the ability to search and use smartphones.

 Giving up convenience, or our feelings on giving up the perceived convenciences that smartphones provide.

Table 5.5. Factor Loadings from Rotated Component Matrix: PCA with Varimax. Image 1.Table 5.5. Factor Loadings from Rotated Component Matrix: PCA with Varimax

Table 5.6. Exploratory Factor Analysis and Reliability Analysis of All Items. Image 2.Table 5.6. Exploratory Factor Analysis and Reliability Analysis of All Items

If you want to see how you rank, we recommend taking a look at the PDF. One word of warning though: it's dense.