A single qualitative study can show same findings as years of quantitative research: Obstructive Sleep Apnea as an example

Conclusion With the use of quantitative research methods it took decades to discover things that we found in one simple qualitative study. We therefore urge scientists to use more often these qualitative methods when looking for S&AF of diseases and syndromes.
Source: Australasian Medical Journal - AMJ - Category: Journals (General) Source Type: research