Health and Psychosocial Instruments This link opens in a new windowHealth and Psychosocial Instruments (HaPI) provides information about behavioral measurement instruments, abstracted from hundreds of leading journals covering health and psychosocial sciences. Additionally, instruments from Industrial/Organizational Behavior and Education are included. Records provide information on questionnaires, interview schedules, vignettes/scenarios, coding schemes, rating and other scales, checklists, indexes, tests, projective techniques, and more.