Top tip : look for existing data.

David Silverman explains the usefulness of secondary data in research.

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Bibliographic Details
Online Access:	Streaming Video (via SAGE)
Other Authors:	Silverman, David, 1943- (Commentator)
Format:	Electronic Video
Language:	English
Published:	London : SAGE Publications Ltd, 2017.
Series:	Doing Qualitative Research.
Subjects:	Quantitative research. Meta-analysis. Meta-analysis Quantitative research

Internet

Streaming Video (via SAGE)

Holdings details from Online
Call Number:	QA76.9.Q36 T67 2017
QA76.9.Q36 T67 2017	Available