Sampling Technique/Source of Data - discusses the process of selecting the participants/respondents of the study
2 types of sampling method
Probability Sampling - involves random selection, allowing you to make statistical inferences about the whole group
Non probability Sampling - involves noon random selection based on convenience or other criteria, allowing you to collect initial data
In qualitative research, purposive sampling technique is used where inclusion criteria is set before a certain participant is chosen to ensure that the data to be gathered are reliable