That is, for the first three types of case studies (illustrative, exploratory, and critical instances) generalizability, if needed, cannot be achieved unless they are combined with other methods.
Generalizability can not happen without other methods in the case of these case studies.
Generalizability is easily achieved within the context of the first three types of case studies.
Chinatown streets are brightly lit.
A person in a Hawaiian t-shirt and jeans is watching a man next to a motorbike.
Jaffa is the oldest port still being used.
The animal is crawling on the ground.
a girl bounces on a pogo stick.
The sports fan is indoors.