Evaluation of program
There are two aspects to evaluate the program. They are the effectiveness of the program and the satisfaction of the participants towards the program.
For the effectiveness evaluation,  the program’s effectivenss to stop the participants from playing their devices before sleep will be evaluated. In addition, the change of sleep quality of the participants before and after the program will be examined to study the relationship between playing electronic device and sleep quality.
To collect data, a self-administered modified Pittsburgh Sleep Quality Index (PSQI) (Buysse, Reynolds, Monk, Berman, & Kupfe, 1989) will be delivered before the program starts to get baseline sleep quality and time of playing devices. After one month when the program finish, an online modified PSQI questionnaire will be used to collect participants’ updated sleep quality and time spent on electronic device before sleep
For evaluation criteria, among participants who play electronic device for more than 30 minutes before sleep at baseline, if 50% play 15 minutes or less after the talk, the program is    effective to change devices playing habit. Among those having behaviour change, for poor sleepers, if 60% becomes good sleepers, it will indicate not playing electronic devices can improve sleep quality.
Regarding satisfaction evaluation, the feedbacks of the participants on the programs will be evaluated in 4 domains: clarity of presentation, the style of teaching the quality of handouts and the level of interest that participants maintained throughout the talk. An 9-item self-reported questionnaire called Seminar Evaluation (Seminar Evaluation -University of San Diego, Retrieved February 21, 2015) will be delivered to participants after the program. If 60% of participants rate the program satisfactory, the program is successful.

Buysse, D. J., Reynolds, C. F., Monk, T. H., Berman, S. R., & Kupfer, D. J. (1989). The Pittsburgh sleep quality...