By Roger Tourangeau (The Gallup Organization), Lance J. Rips (Northwestern University, Illinois), Kenneth Rasinski (University of Chicago)
By L. Todres
By Carl Walker (University of Brighton, Brighton), Katherine Johnson (University of Brighton, Liz Cunningham (University of Brighton
By Michelle Newhart, Mildred L. Patten
By Thomas Baguley (Nottingham Trent University, Nottingham)
By J.C. Somogyi, E.H. Koskinen, I. Elmadfa
By Alan Aldridge
By Janet Zollinger Giele, Glen H. Elder, Jr.
By Donna M Mertens
By William E. Glassman
By Foster, Jeremy
By Michael Carroll and Margaret Tholstrup
By Jonathan A. Smith, Rom Harré, Luk Van Langenhove
By Various
By Homer H. Johnson, Robert L. Solso
By Marsh, Mark
By Plummer, Kenneth
By Forshaw, Mark
By McFarland, David
By Shaughnessy, John J., Zechmeister, Eugene B.
By Goodwin, C. James, Kerri A.
By Legge, David
By Andreas Vossler, Naomi Moller
By Willig, Carla
By Walker, Melanie
By Slater, Lauren
By MacInnes, John
By Kerlinger, Fred N.
By Terry Hanley, Clare Lennie, William West, Lennie, Clare, West, WILLIAM