_Errata (from 2016)__
1. Geyer, K., Ellis, D. A., Shaw, H. and Davidson, B. I. (in press). Open source smartphone app and tools for measuring, quantifying, and visualizing technology use Behavior Research Methods.

Four numbers in Table 2 were rounded to two decimal places instead of one. These (and a handful of typographical errors) have been corrected in the post-print.

2. Ellis, D. A. (2020). Smartphones within Psychological Science. Cambridge University Press

PDF with page numbers available here

3. Ellis, D. A., Davidson, B. I., Shaw, H. and Geyer, K. (2019) Do smartphone usage scales predict behavior? International Journal of Human-Computer Studies,130,86-92

The mean value of objective notifications (ObjN) in the Supplementary Materials should read 144.73 and not 114.73. This has been corrected in the post-print.

4. Ellis, D. A., Luther, K. and Jenkins, R. (2018). Missed appointments during shifts to and from daylight saving time. Chronobiology International, 35(4), 584-588

The percentage reported on page 585 (4.6%) should have been rounded to two decimal places (4.55%) to remain consistent with other results.

5. Shaw, H., Ellis, D. A., Kendrick, L., Ziegler, F. and Wiseman, R. (2016). Predicting smartphone operating system from personality and individual differences. Cyberpsychology, Behavior, and Social Networking. 19(12), 727-732

The statistic reported below Table 3 on page 730 [X2(1) = 4.46, p = 0.04], should read [X2(1) = 3.39, p = 0.06]. The meaning of the preceding sentence remains correct.