Answer:
Depending on the researcher's research plan and design, there are several ways data can be collected. The most commonly used methods are: published literature sources, surveys (email and mail), interviews (telephone, face-to-face or focus group), observations, documents and records, and experiments.
Here are the top six data collection methods:
Interviews.
Questionnaires and surveys.
Observations.
Documents and records.
Focus groups.
Oral histories.
Explanation:
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