the two types of conducting survey are interview method
and questionnaire method
the interview method is face to face while questionnaire method is pen and paper
the observation is observing the outcomes of event. the person who gathers data is called investigator while the person who being observe is called subject
experimentation is used by physicist and behavional scientist in collecting data
Registration method refers to continuous, permanent compulsory recording of the occurrence of vital events together with certain identifying or descriptive characteristics concerning them.
the different method in gathering/collecting data are conducting survey, observation, experimentation, registration method