There is no easy way to specify quantitative studies in CINAHL.
Make sure you use the CINAHL Subject Heading (MH "Quantitative Studies") in your search
Randomized Controlled Trials (check box or in the Publication Type menu) are often quantitative, or at least have a quantitative aspect.
Use the Publication Type menu:
- Equations and Formulas
- Statistics
- Tables and Charts
- Randomized Controlled Trials (if you haven't already done a search with the check box, see above)
(you can select more than one option in the drop down box by using CTRL-click (Windows) or Command-click (Mac))
Graph and Chart are available from the more limited Image Quick View check boxes (bottom of the Limits menu), as well. Results will be mostly 1-click full text, unlike the Publication Type menu options above.
Credit: Roger State University Nursing Research Guide:https://libguides.rsu.edu/research