The results from only one case study (or modest amount of cases) are certainly not statistically generalisable (a case study, even so effectively-executed, doesn't depict the wider world in the same way that a sample represents the populace from which it had been drawn). But case reports is usually generalisable https://simonniaec.digiblogbox.com/63197627/considerations-to-know-about-harvard-case-study-analysis