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Scale development : theory and applications / Robert F. DeVellis, University of North Carolina at Chapel Hill. by Series: Applied social research methods series ; 26
Edition: Fourth edition
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Los Angeles SAGE ©2017
Availability: Items available for loan: Biblioteca Pedro Arrupe (1)Call number: H 61 .27 D48 2017.

Improving survey questions : design and evaluation / Floyd J. Fowler, Jr. by Series: Applied social research methods series ; v. 38
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Thousand Oaks Sage Publications ©1995
Availability: Items available for loan: Biblioteca Pedro Arrupe (1)Call number: HN 29 F67 1995.