A practical guide to behavioral research :
Sommer, Robert.
A practical guide to behavioral research : tools and techniques / Robert Sommer, Barbara Sommer. - 5th ed. - New York : Oxford University Press, 2002. - 380 p.
Includes indexes and glossary.
0195142098
Social sciences.
Research design.
Psychology.
Data collection.
Research--methods.
BF 76.5 2002SO
A practical guide to behavioral research : tools and techniques / Robert Sommer, Barbara Sommer. - 5th ed. - New York : Oxford University Press, 2002. - 380 p.
Includes indexes and glossary.
0195142098
Social sciences.
Research design.
Psychology.
Data collection.
Research--methods.
BF 76.5 2002SO