HaPI - Health and Psychosocial Instruments Health and Psychosocial Instruments provides ready access to information on measurement instruments (i.e.¸ questionnaires¸ interview schedules¸ checklists¸ index measures¸ coding schemes/ manuals¸ rating scales¸ projective techniques¸ vignettes/scenarios¸ tests) in the health fields¸ psychosocial sciences¸ organizational behavior¸ and library and information science. HAPI assists researchers¸ practitioners¸ educators¸ administrators¸ and evaluators¸ including students¸ to identify measures needed for research studies¸ grant proposals¸ client/patient assessment¸ class papers/projects¸ theses/dissertations¸ and program evaluation. By creating an organized resource of previously unavailable measurement information¸ HAPI: (a) provides a means of locating a variety of instruments¸ (b) helps to reduce inefficiency and cost¸ and (c) eliminates duplication and "reinvention of the wheel."