Respuesta :

The most common techniques used to collect data for case studies are:
personal interviews.
direct observation.
psychometric tests.
archival records. I hope i have helped:)
Mblancher993

Answer:

Questionnaires, surveys and checklists.

Personal interviews.

Documentation review.

Observation.

Focus group.

Case Studies

Explanation: This process not only allows scientists to investigate and understand different psychological phenomena, but it also provides researchers and others a way to share and discuss the results of their studies.

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