NCT Number: NCT01939925
The purpose of this randomised controlled trial is to compare a new standardised summary format for presentation of synthesised evidence from systematic reviews for the public (a new plain language summary format) to the current format used in Cochrane systematic reviews. The study will evaluate if the new presentation improves understanding about the benefits and harms of an intervention, if it improves the accessibility of the information, and if it is preferred over other versions by the public over the current format.
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Inclusion criteria
New plain language summary includes qualitative and quantitative description of text (absolute effects and natural frequencies provided); quantitative results provided in a table; quality of the evidence according to GRADE provided in a table; question and answer format; follows principles of linguistic frameworks (e.g. progressive movements from introduction to 'bottom line')
Current plain language summary includes qualitative description of effects only; inconsistent description of the quality of the evidence; paragraph of text; inconsistent flow of information
Time frame: After reading summary - time 0
Average proportion of people who answered 5 multiple choice questions correctly. Each question includes five response options about the number of people who could benefit or be harmed by the intervention and about the quality of evidence
Time frame: After reading summary - time 0
Total number of questions out of five questions for benefits and harms that were answered correctly
Time frame: after reading summary - time 0
A multiple choice question with three options
Time frame: after reading summary - time 0
A multiple choice question with three options
Time frame: after reading summary - time 0
Five questions about whether information was easy to find and understand, reliable, and useful to someone making a decision. Measured using a 7 point Likert scale (strongly agree to strongly disagree).
Time frame: after reading both summaries - time 0
7 point likert scale
Norwegian Knowledge Centre for the Health Services
Other Gov
Communicating Evidence From Systematic Reviews to the Public: A Randomised Controlled Trial
Acronym: PLSRCT
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View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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