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Guidelines for improving the stringency of response shift research using the thentest.

Carolyn E Schwartz1, Mirjam A G Sprangers

  • 1DeltaQuest Foundation, Inc., Concord, MA, USA. carolyn.schwartz@deltaquest.org

Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation
|January 20, 2010
PubMed
Summary

This study provides guidelines to improve the retrospective pretest-posttest (thentest) design for detecting recalibration response shift. A checklist is offered to enhance research rigor and replicability in health-state change studies.

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Area of Science:

  • Psychological Measurement
  • Health Psychology
  • Research Methodology

Background:

  • Health-state changes can trigger response shifts in internal standards.
  • The retrospective pretest-posttest (thentest) design is commonly used to detect recalibration response shift.
  • Existing thentest designs face significant methodological challenges.

Purpose of the Study:

  • To provide guidelines for the optimal use of the thentest approach.
  • To improve the stringency and validity of studies detecting recalibration response shift.
  • To offer recommendations for enhancing research quality in this area.

Main Methods:

  • Literature review and discussion of relevant methodologies.
  • Development of a comprehensive checklist for thentest application.
  • Focus on key aspects of study design and interpretation.

Main Results:

  • A detailed checklist is provided for studies employing the thentest.
  • Recommendations cover study design, hypothesis formulation, and data analysis.
  • The checklist addresses the identification of change and alternative explanations.

Conclusions:

  • The developed guidelines-checklist can foster rigorous and replicable research using the thentest.
  • This resource may assist journal editors and reviewers in evaluating study quality.
  • Many recommendations are applicable to other methods for detecting response shift.