September 01, 2001 article Diffusion effects: Control group contamination threats to the validity of teacher-administered interventions. Journal of Educational Psychology DOI: 10.1037/0022-0663.93.3.639 OpenAlex Authors 0 Author list not loaded yet. Cited by 1 stored of 37 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access Encounter-based randomization did not result in contamination in a shared decision-making trial: a secondary analysis 2022 Journal of Clinical Epidemiology article Health Professions Patient-Provider Communication in Healthcare Open access 1 citations 1 result References 0