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Volumn 93, Issue 3, 2001, Pages 639-645
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Diffusion effects: Control group contamination threats to the validity of teacher-administered interventions
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Author keywords
[No Author keywords available]
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Indexed keywords
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EID: 0035637010
PISSN: 00220663
EISSN: None
Source Type: Journal
DOI: 10.1037/0022-0663.93.3.639 Document Type: Article |
Times cited : (33)
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References (16)
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