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Hewitt, C., Howe, A., Ramsay, U. C., Song, F., Miles, U. J., Torgerson, D., ... & Campbell, U. M. Contamination in Trials of Educational Interventions.
Hewitt, Catherine, et al. "Contamination in Trials of Educational Interventions."
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C Hewitt, A Howe, UEAC Ramsay, F Song, UEAJ Miles… - academia.edu

Contamination in Trials of Educational Interventions.

Educational trials

Hewitt, Ramsay, Song

GSID: PM8e1wTK5-MJ

Excerpt

… Different combinations of the components of the contamination process favour either cluster or individual randomisation and should be considered when designing trials. Empirical evidence of the process of contamination during educational trials would be valuable. …