Convenience Sampling, Random Sampling, and Snowball Sampling: How Does Sampling Affect the Validity of Research?
- 期刊名称Journal of Visual Impairment & Blindness
- 作者Emerson, Robert Wall
- 卷第109卷
- 期第2期
- 印刷ISSN0145-482X
- 电子ISSN1559-1476
- 文件大小531.39KB
- 发表时间2015-03
- DOI10.1177/0145482x1510900215
- 页码164-168
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