Unobtrusive Measures

ISBN-13: 9780761920120 / Angielski / Miękka / 1999 / 240 str.

Eugene J. Webb; Donald T. Campbell; Richard D. Swartz

Opis

This updated edition of Unobtrusive Measures builds on the earlier version's drive to justify novel techniques of survey and archival research. This book encourages and motivates ingenuity in obtaining information. The authors combine different methods so that research results can withstand the 'threats to validity'.