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Why Is the One-Group Pretest-Posttest Design Still Used?

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The one-group pretest-posttest design is flawed for clinical nursing research but still used. This editorial critiques the design and offers solutions for better research practices.

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Area of Science:

  • Nursing Research Methodology
  • Clinical Study Design
  • Pre-experimental Research

Background:

  • The one-group pretest-posttest design is frequently employed in clinical nursing research.
  • Despite its widespread criticism, this pre-experimental approach persists in practice.

Discussion:

  • This editorial critically evaluates the inherent limitations of the one-group pretest-posttest design.
  • It explores the underlying reasons contributing to the continued utilization of this methodology in nursing studies.
  • The paper provides actionable recommendations for improving research design in clinical nursing.

Key Insights:

  • The one-group pretest-posttest design lacks robust internal validity, making causal inferences unreliable.
  • Common issues include susceptibility to threats like history, maturation, and testing effects.
  • Alternative, stronger research designs are essential for generating credible evidence in nursing.

Outlook:

  • Encouraging the adoption of more rigorous research designs in clinical nursing.
  • Promoting critical appraisal of methodological choices in published nursing research.
  • Advancing the quality and reliability of evidence-based nursing practice through improved study design.