Final answer:
Probability sampling is a method used to select random samples from a population, while transferability in qualitative research refers to the applicability of findings to other contexts.
Step-by-step explanation:
Probability sampling is a method used by researchers to select samples at random from a larger population. This helps ensure that every member of the population has an equal chance of being included in the sample, increasing the likelihood of obtaining representative results. For example, random digit dialing is a survey method that generates telephone numbers at random to select people for involvement in a survey.
Transferability in qualitative research refers to the extent to which the findings of a study can be applied or transferred to other contexts or settings. It involves assessing the relevance and applicability of the findings in similar situations. For instance, in qualitative research, a snowball sampling strategy can be used to recruit additional participants by leveraging the networks of existing participants, ensuring a more diverse and representative sample.