Eugene J. Webb – författare

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2 produkter

1. 

   Unobtrusive Measures

   Av Eugene J. Webb, Donald T. Campbell m. fl.

   Inbunden, 1999

   3392 kr

   Lägg i varukorg

   Thirty-five years ago, the four authors of this book addressed the problems of validity in social science research. They were interested in new and unused methods for obtaining information. The original edition and an expanded version have often been cited as justification for using novel means to …

2. 

   Unobtrusive Measures

   Av Eugene J. Webb, Donald T. Campbell m. fl.

   Häftad, 1999

   2371 kr

   Lägg i varukorg

   Thirty-five years ago, the four authors of this book addressed the problems of validity in social science research. They were interested in new and unused methods for obtaining information. The original edition and an expanded version have often been cited as justification for using novel means to …