摘要
在质性研究中,资料饱和通常被用以评估研究资料的充足性。但在研究实践中,资料饱和却存在概念模糊及操作性问题。作为某项质性研究所抽取的样本量已满足研究需要的标志,按照在研究过程中判定时点的先后顺序,资料饱和可划分为数据饱和、编码或主题饱和、意义饱和及理论饱和4种主要形式。4种形式的资料饱和各有其特定的内涵、评估方式和判定标准。研究认为,达到资料饱和的样本量标准不应统一设定,其检验需嵌入具体的研究过程;资料饱和存在逻辑上的不确定性,适度追加抽样有助于进一步确认;资料饱和作为考察研究质量的一项重要指标,并不适用于所有质性研究。
In qualitative research,saturation is usually used to assess the adequacy of research data.However,in research practice,there are various forms of saturation,and the relationships among them are complicated and ambiguous.Previous studies lack operational description and practical guidance for the evaluation of saturation and its reports.Considering its importance to qualitative research,this study clarifies the concepts of saturation.As a sign that the sample size of a qualitative study has met the research needs,based on the time sequence of their occurrence during the research process,saturation can be distinguished into four types:data saturation,code or thematic saturation,meaning saturation,and theoretical saturation.Each of them has its specific connotations,evaluation methods and judgment criteria.Some problems are discussed in this study.1)The sample size to reach saturation should not be set uniformly,and it must be embedded in the specific research process;2)Due to the logical uncertainty of saturation,a little oversampling would be helpful;3)As an important index to evaluate the quality of a qualitative research,saturation test cannot be applicable to all forms of qualitative research.
作者
杨莉萍
亓立东
张博
YANG Liping;QI Lidong;ZHANG Bo(School of Psychology,Nanjing Normal University,Nanjing 210024,China)
出处
《心理科学进展》
CSSCI
CSCD
北大核心
2022年第3期511-521,共11页
Advances in Psychological Science
基金
江苏省社会科学基金项目(19SHB007)。
关键词
质性研究
资料饱和
判别方式
判定标准
qualitative research
saturation
evaluation methods
judgment criteria
