Design of control-group conditions in clinical trials of behavioral interventions

Ruth Lindquist, Jean F. Wyman, Kristine M.C. Talley, Mary J. Findorff, Cynthia R. Gross

Research output: Contribution to journalReview articlepeer-review

66 Scopus citations

Abstract

Purpose: To review considerations in the design of placebo (attention) control conditions for community-based clinical trials of health behavior change interventions and to provide practical strategies for the design of control conditions. Organizing Constructs: A well-designed control condition is an essential component of a clinical trial to foster the unambiguous interpretation of study findings. Methods: Pitfalls in the design of control conditions in clinical trials of behavioral interventions are identified and strategies to address them are offered. Types of control conditions that have been used in fall prevention trials are described, along with their strengths and weaknesses. The control condition used in the recent fall evaluation and prevention program (FEPP) was designed to overcome limitations of previous trial designs; it is provided to illustrate how to apply specific design principles. Conclusions: Pitfalls in the design of behavioral intervention studies may be avoided with the application of sound design principles. The FEPP active control condition can be used as a model in the design of future studies.

Original languageEnglish (US)
Pages (from-to)214-221
Number of pages8
JournalJournal of Nursing Scholarship
Volume39
Issue number3
DOIs
StatePublished - Sep 2007

Keywords

  • Clinical trials
  • Control group
  • Fall prevention
  • Placebo intervention
  • Research design and methods

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