One-Three-Twenty-Five (1:3:25) Principle


The 1:3:25 option was developed by the Canadian Health Services Research Foundation (CHSRF) in order to ensure that research findings were presented in a logical and consistent manner

1:3:25 refers to a format that can be used to provide a consistent structure for final reports of any kind.  The option allows for a one page outline of the main messages that have come from the research, a three page executive summary and 25 pages to present the findings and methodology used in a language that is clear and accessible to the non-research specialist.

The main messages contained in the first page should not be a summary of the findings but rather the key points that decision makers can take from the research. The three page executive summary presents the findings succinctly in order to facilitate easy access for those who may not have time to read the full report. This should not include any discussion of research methodology other than to outline the actual methods used.  Finally, the 25 page report is used to cover the background to the research, the questions addressed, and an outline of the methodology, the findings and conclusions. 


Do you have an example of where this option has been used?

Click on Contribute Content or Contact Us to share your example of this option.


Advice for CHOOSING this option (tips and traps)

  • Provide this advice to evaluators at the start of the evaluation process. This will help to clarify reporting expectations.

Advice for USING this option (tips and traps)

  • Follow the guidance on how to develop the report. Most important is the one-page of recommendations at the beginning of the report. The 25 page report provides the evidence for these recommendations, but the short 1-page overview allows the decision maker to quickly grasp the key actions to take from your work.
  • If the evaluator is using this format for the first time, work with the evaluator to review drafts of the report to ensure that the paper is being written for decision makers and implementers, rather than academics.



  • Reader-Friendly Writing - 1:3:25 : The Canadian Health Services Research Foundation produce this document for researchers but it could good for anyone. These six articles provide communication resources, tips and guidelines for report writing (1:3:25), presentations, posters, self-editing and talking to media.


Davies, P. (2012). The state of evidence-based policy evaluation and its role in policy formation. National Institute Economic Review, (219), R 41 - R 52. Retrieved from

Updated: 21st August 2014 - 12:16pm
This Option is useful for:
A special thanks to this page's contributors
Researcher and Evaluator, Assai Consult.


There are currently no comments. Be the first to comment on this page!

Add new comment

Login Login and comment as BetterEvaluation member or simply fill out the fields below.