Data collection
The officers in local organizations such as the District Office, District Public Health Office, Sub-district Municipality, and Health Promoting Hospital were contacted to coordinate and recruit the volunteers or subjects in the selected districts. The general Thai population that met the eligibility criteria of this study was included in the study. The questionnaire survey sessions were conducted in local government meeting rooms near the study subjects’ homes. Depending on the number of subjects, there were 12–15 respondents per session and 4–6 sessions per day. After respondents registered, they were assigned a well-trained interviewer to help them with the interview. All interviewers were trained to standardize the data collection process, including the study protocol, informed consent, and experimental design, and they also underwent a practice with a pilot sample.Face-to-face, computer-assisted, one-on-one interviews were performed to collect data. The questionnaires consist of 3 parts: (1) demographic data, (2) health data, and (3) time preference experiment. The lead instructor explained each step of this survey, but the standardized details were presented to the respondents via the instructional video clips. Subjects privately completed the demographic data and answered the health questions with the help of the interviewer. In the web-based experiment, subjects decided and indicated their preferred option in Fig. 