Research

===Generalizability===
{{see also|External validity}}
Generalization is the process of more broadly applying the valid results of one study.<ref>{{cite journal|doi=10.1212/WNL.0b013e318258f812|title=Generalizability: The trees, the forest, and the low-hanging fruit|year=2012|last1=Kukull|first1=W. A.|last2=Ganguli|first2=M.|journal=Neurology|volume=78|issue=23|pages=1886–1891|pmid=22665145|pmc=3369519}}</ref> Studies with a narrow scope can result in a lack of generalizability, meaning that the results may not be applicable to other populations or regions. In comparative politics, this can result from using a single-country study, rather than a study design that uses data from multiple countries. Despite the issue of generalizability, single-country studies have risen in prevalence since the late 2000s.<ref name="Pepinsky">{{cite journal|doi=10.1146/annurev-polisci-051017-113314|doi-access=free|title=The Return of the Single-Country Study|year=2019|last1=Pepinsky|first1=Thomas B.|journal=Annual Review of Political Science|volume=22|pages=187–203}}</ref>