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Research methods
I t l d t
Data sourceSecondary source -> Secondary data
i i d
Internal dataExternal data
Primary source -> Primary data
ObservationData
ObservationExperiment
collectionp
Survey
Random sampling
Probability sampling
Systematic sampling
Sampling
samplingStratified sampling
Sampling
Non-probabilityConvenience sampling
Non probability sampling Judgmental sampling
Quota sampling
A h
-By post-TelephonePersonal inter ie
Survey Approach -Personal interview
dmethods Questionnaire- Unstructured- Structured
Administration- In-house- Agency(Outsourced)
Ad hocSurvey frequency
Continuous
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