Updated weekly, CINAHL indexes articles from over 5000 journals that cover nursing literature and allied health fields such as cardiopulmonary technology, health education, medical/laboratory, medical records, occupational therapy, physical therapy, respiratory therapy, and physician's assistant. Other nursing materials indexed include books, dissertations, conference proceedings, professional standards, and audiovisual materials. Full text is available for over 770 journal titles.
To identify records of publications dealing with measurement tools, one approach is to conduct your subject search, then "Limit" those search results by "Source Types" to "Research Instruments." Unfortunately, that approach is likely to vastly understate the results. Therefore, be sure to narrow your subject search with pertinent CINAHL subject terms such as "Questionnaires."