Maximizing both external and internal validity in longitudinal true experiments with voluntary treatments: The "combined modified" design
Year of publication: |
1996
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---|---|
Authors: | Braver, Sanford L. ; Smith, Melanie C. |
Published in: |
Evaluation and Program Planning. - Elsevier, ISSN 0149-7189. - Vol. 19.1996, 4, p. 287-300
|
Publisher: |
Elsevier |
Saved in:
Online Resource
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