השוואת שיטות

	דגימה תכליתית מבוססת ניתוח רגישות	דגימת מקרה טיפוסי
תחום	מתודולוגיית סקרים	מתודולוגיית סקרים
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1990s–2000s	1980s (systematized in Patton 1990/2002)
הוגה השיטה	Rooted in Patton's purposive sampling typology; sensitivity analysis practices formalized in research synthesis literature	Michael Quinn Patton
סוג	Purposive qualitative sampling with robustness verification	Purposive qualitative sampling strategy
מקור מכונן	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
כינויים	purposive sampling with sensitivity checks, robust purposive sampling, sensitivity-tested purposive selection	typical case selection, modal case sampling, representative case sampling, average case sampling
קשורות	5	5
תקציר	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.	Typical case sampling is a purposive strategy in which the researcher deliberately selects cases that represent what is ordinary, normal, or most common within a target group. Rather than seeking outliers or the widest possible variation, the goal is to illustrate and communicate what a typical experience, program, or phenomenon looks like to stakeholders or audiences unfamiliar with it. The strategy is widely used in qualitative evaluation research and program reporting.