পদ্ধতির তুলনা করুন

	সংবেদনশীলতা বিশ্লেষণ-ভিত্তিক উদ্দেশ্যমূলক নমুনায়ন	বিচ্যুতিমূলক দৃষ্টান্ত নমুনায়ন
ক্ষেত্র	জরিপ পদ্ধতি	জরিপ পদ্ধতি
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1990s–2000s	1990
প্রবর্তক	Rooted in Patton's purposive sampling typology; sensitivity analysis practices formalized in research synthesis literature	Michael Quinn Patton
ধরন	Purposive qualitative sampling with robustness verification	Purposive qualitative sampling strategy
মৌলিক উৎস	Patton, M. Q. (2015). Qualitative Research and Evaluation Methods (4th ed.). Sage Publications. ISBN: 978-1412972123	Patton, M. Q. (2002). Qualitative Research and Evaluation Methods (3rd ed.). Sage Publications. ISBN: 978-0761919711
অপর নাম	purposive sampling with sensitivity checks, robust purposive sampling, sensitivity-tested purposive selection	extreme case sampling, outlier sampling, negative case sampling, deviant-case selection
সম্পর্কিত	5	5
সারসংক্ষেপ	Sensitivity analysis-based purposive sampling extends conventional purposive sampling by systematically testing whether key findings or case-selection decisions change when the inclusion criteria, selection logic, or boundary conditions are altered. It applies the logic of sensitivity analysis — standard in quantitative research and systematic reviews — to qualitative case selection, giving researchers explicit evidence of how robust their purposive choices are to plausible alternative selection rules.	Deviant case sampling is a purposive qualitative sampling strategy in which the researcher intentionally selects cases that are unusual, exceptional, or markedly different from the norm — outliers, extreme successes, or conspicuous failures. The goal is not statistical representation but deep learning from cases that illuminate the boundaries of a phenomenon, challenge prevailing assumptions, or reveal processes that typical cases obscure.