A. data
B. interview
C. observation
D. questionnaire
E. sample
1. It allows the researcher to interact with the
respondent.
2. It involves watching the participants without
interacting with them.
3. It gives the person who gathers data the
opportunity to ask the open-ended questions that they need to know.
4. It refers to the information collected.
5. It is a small part of the population.​