英文摘要 |
In recent years, the use of qualitative research approaches in the fields of medicine, nursing, and healthcare has become increasingly common, and the findings of such studies have provided a multi-faceted review of the quality of medical care. It has long been established that sample sizes in qualitative research tend to be smaller than those used in quantitative research; however, the method for determining the appropriate sample size remains ambiguous. Qualitative researchers generally regard data saturation as the gold standard for determining the appropriate ample size, but few articles have clearly illustrated the concept of data saturation and its specific operating procedures. In view of this, the present paper reviews key studies on the use of data saturation in qualitative research-with the aim of clarifying the definition, concept, influencing factors, and operational methods of data saturation. Our goal is to provide qualitative researchers with an understanding of data saturation to help them determine a reasonable sample size when designing a qualitative study. |