This book provides researchers, evaluators, and graduate students with a user-friendly presentation of Campbell's essential work (including his thoughts on some of his classic works) in social experimentation.

This essential work in social measurement includes: arguments as to why qualitative approaches belong with quantitative ones; a debate with deconstructionists and social constructionists on measurement validity, and an expansion and further explanation of the multitrait-multimethod matrix.

This essential work in social measurement includes: arguments as to why qualitative approaches belong with quantitative ones; a debate with deconstructionists and social constructionists on measurement validity, and an expansion and further explanation of the multitrait-multimethod matrix.