Patient Comprehension of Operative Instructions With a Paper Handout Versus a Video: A Prospective Randomized Control

Brian M Katt1, Amr M Tawfik1, Casey Imbergamo2

  • 1Rothman Orthopaedic Institute, Philadelphia, PA; Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ.

Abstract

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Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
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