Types of visit methods: $(1)$ Personal interview $(2)$ Mass visits $(3)$ Controlled or formal visit $(4)$ Unrestricted or informal visits and $(5)$ Central visit.
The main purpose of sociology is to get detailed information by examining the events arising in the society and related to the society from a scientific point of view.
In this observation practice, the researcher collects information by observing or observing the activities of the group, keeping the group itself aloof, without becoming an active member of the group for what is to be studied.
In this type of questionnaire the questions are asked in the form of pictures. So that even children or illiterate persons can answer by drawing or marking different symbols.
This type of questionnaire usually has specific questions and their alternative answers in advance. Respondents only mark 'yes' or 'no' or 'don't know' answers to indicate their answer.
In interview practice, the researcher obtains information about the study reproduction through face-to-face conversation or questioning with the respondent face to face at a pre-determined place and time.