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Measuring ability to assess claims about treatment effects: a latent trait analysis of items from the ‘Claim Evaluation Tools’ database using Rasch modelling
  1. Astrid Austvoll-Dahlgren1,
  2. Øystein Guttersrud2,
  3. Allen Nsangi3,
  4. Daniel Semakula3,
  5. Andrew D Oxman1
  6. on behalf of the IHC Group
  1. 1Norwegian Institute of Public Health, Oslo, Norway
  2. 2Norwegian Centre for Science Education, University of Oslo, Oslo, Norway
  3. 3Makerere University College of Health Sciences, Kampala, Uganda
  1. Correspondence to Dr Astrid Austvoll-Dahlgren; astrid.austvoll-dahlgren{at}fhi.no

Footnotes

  • Contributors AA, ØG and AO wrote the protocol, and the IHC Group provided comments to this protocol. The Claim Evaluation Tools were developed by the IHC Group. AA coordinated all of the development and evaluation process with support from AO. DS, AN and KO performed the data collection and data entry from the field testing. ØG and AA prepared the data files for the analysis, and ØG conducted the Rasch analysis. AA authored this manuscript with significant input from the IHC Group.

  • Funding The IHC project is funded by the Research Council of Norway-GLOBVAC project 220603.

  • Competing interests None declared.

  • Ethics approval The research was approved by the Makerere University School of Medicine Research and Ethics Committee and the Uganda National Council for Science and Technology.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement All data are published as part of this study; additional information is available upon request and on our website informedhealthchoices.org. All items in the Claim Evaluation Tools Database are available upon request for non-commercial use.

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Footnotes

  • Contributors AA, ØG and AO wrote the protocol, and the IHC Group provided comments to this protocol. The Claim Evaluation Tools were developed by the IHC Group. AA coordinated all of the development and evaluation process with support from AO. DS, AN and KO performed the data collection and data entry from the field testing. ØG and AA prepared the data files for the analysis, and ØG conducted the Rasch analysis. AA authored this manuscript with significant input from the IHC Group.

  • Funding The IHC project is funded by the Research Council of Norway-GLOBVAC project 220603.

  • Competing interests None declared.

  • Ethics approval The research was approved by the Makerere University School of Medicine Research and Ethics Committee and the Uganda National Council for Science and Technology.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement All data are published as part of this study; additional information is available upon request and on our website informedhealthchoices.org. All items in the Claim Evaluation Tools Database are available upon request for non-commercial use.

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