I probably do, I have a smartphone and can't stand to be without it.

I probably do, I have a standard cell phone and can't stand to be without it.

I don't know. I have a smartphone and have some of the symptoms, but I think I'd be okay without my phone.

I'm not sure. I have a standard cell phone and hate to leave it behind but I think I could do without it.

No, I often leave home without my smartphone and I don't miss it.

No, I often leave home without my standard cell phone and don't miss it.

No, I don't have a cell phone.

Other: