Sample population and selection : the elderly (over 60 years) and early adults (20 to 40 years). In this pilot study, 20 people were selected for each group.
Data collection: Personal data record and experiment results data record
Text and background colors: The font used is 20-point TH Sarabun PSK as recommended by Ratanachote and the color pairs that we used were based on from three standards. The first standard, The standard for senior citizens of ISO / TR 22411, The Web Content Accessibility Guidelines (WCAG) and The World Wide Web Consortium (W3C) standard.