The prediction was that the students holding a claim check for their phone would become anxious, and indeed they did—but no more so than the students whose phone was turned off and stored under the desk. More importantly, however, we found that the heaviest users of their smartphones—those who were younger and grew up with technology—showed increased anxiety after just ten minutes of not being able to use their phone, and their anxiety continued to increase across the hour as compared to those who used their phones less.
