Figure 2.

Overview demographics for the 2 samples used in mixed-effects linear models with dependent variables for typing speed, typing variability, pausing, typing accuracy, and session duration. Sample A consisted of 250 users (n = 142,202 sessions) and was used to investigate effects of time of day, age, typing mode (ie, 1- or 2-handed), total number of characters, etc. in a session. Sample B (147 users, n = 86,541 sessions) was a subset of sample A comprising users who completed at least 1 Patient Health Questonnaire-8 (PHQ-8) and was used to additionally investigate the effect of mood (543 total PHQs).