Key points are not available for this paper at this time.
(2000). Bestimmung der Gültigkeit in der qualitativen Forschung. Theory Into Practice: Bd. 39, Gute qualitative Daten gewinnen zur Verbesserung der Bildungspraxis, S. 124-130.
Creswell et al. (Di,) untersuchten diese Frage.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: