tldr;
The higher the income, the less time spent online. More income generally means less free time, less time at work to screw around, and vice versa.
The higher the income, the less time spent online. More income generally means less free time, less time at work to screw around, and vice versa.
- The dataset they used is from a commercial entity with its own vested interests
- Secondary home device and non-home device use is not included; An increase in substitutes to the primary home-device should lead to lower primary home-device use
- Only click-stream data that can be gathered by comscore can be included
- Sampling bias of comscore (paper does not describe correction for this)
I also think the correlations categorized by type of contents are way more interesting than the TlDr.