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The Template for Intervention Description and Replication as a Measure of Intervention Reporting Quality: Rasch
Marcel P Dijkers1, Scott R Millis1,2
1Department of Physical Medicine and Rehabilitation, Wayne State University, Detroit, Michigan.
Archives of Rehabilitation Research and Clinical Translation
|February 5, 2021
Summary
The Template for Intervention Description and Replication (TIDieR) checklist may not be a robust tool for assessing intervention reporting quality. Further improvements are needed for its use as a reliable reporting standard.
Area of Science:
- Health Services Research
- Psychometrics
- Clinical Trial Methodology
Background:
- The Template for Intervention Description and Replication (TIDieR) checklist is widely used to assess intervention reporting.
- Evaluating the psychometric properties of the TIDieR checklist is crucial for its effective application.
Purpose of the Study:
- To determine if the 12 items of the TIDieR checklist can be combined into a single summary score.
- To assess the psychometric qualities of a Rasch analysis-based TIDieR summary score for intervention reporting completeness and quality.
Main Methods:
- A systematic review and reanalysis of published data from 489 sets of TIDieR ratings.
- Rasch analysis was employed to evaluate the psychometric properties of the TIDieR items.
Main Results:
- Rasch analysis indicated that the TIDieR data fit the Rasch model with acceptable infit and outfit values.
- However, the person separation ratio (1.25) and reliability (0.61) were suboptimal, suggesting unidimensionality issues.
- Confidence intervals for reporting completeness estimates were wide (standard error of 0.78).
Conclusions:
- Rasch indicators suggest the TIDieR checklist may not be a strong instrument for assessing intervention reporting quality.
- The TIDieR checklist should be used with caution, and improvements may enhance its utility as a reporting tool.