Using Video Vignettes to Evaluate Children's Personal Safety Knowledge: Methodological and Ethical Issues
Child Abuse & Neglect 2000 June; 24(6): 811-827
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Whyte, Bruce M.; Geoffrey, Joe; Wilber, Joseph A.; Carr, Jane C. (1990-11)
Henschel, A D; Rothenberger, L G; Boos, J (2010)Randomization is an internationally accepted methodological tool used to perform sound clinical research. To ensure the clinical value of medical interventions, both evidence based medicine and new drug approvals require ...