HaPI contains a wide range of records that provide comprehensive, accurate information about a variety of measurement instruments: Checklists, Coding Schemes, Indexes, Interview schedules, projective techniques, questionnaires, rating scales, surveys, test, vignettes/scenarios.
Instruments are taken from peer-reviewed scholarly journals, compendiums, and test publishers' catalogs. HaPI database identifies measurement tools relevant for investigations and explorations in the field of medicine, nursing, psychology, public health, social work, communication, sociology, organizational behavior/human resources.