The GRADE (Grading of Recommendations, Assessment, Development and Evaluations) approach is a widely accepted methodology to present the quality of evidence (also called "certainty" of evidence) and generate recommendations in the context of clinical practice guideline (CPG) development.
Currently, the main tools available for the reporting of guidelines development are: (1) the Appraisal of Guidelines for Research and Evaluation II (AGREE II) instrument, including the AGREE Reporting Checklist; and (2) the Reporting Items of Practice Guidelines in Healthcare (RIGHT) statement to improve the reporting of guidelines.
The RIGHT (Reporting Items for Practice Guidelines in Healthcare) statement was formally developed as a reporting checklist for de novo guidelines.
On the other hand, the AGREE II Instrument is a generic tool designed primarily to help guideline developers and users assess the methodological quality of guidelines.
There is a major difference between AGREE II instrument and AGREE Reporting Checklist because the latter incorporates the content of AGREE II to outline the reporting standards needed to achieve a high-quality practice guideline. It comprises 23 items (each with specific reporting criteria) in six domains; the structure and design align with AGREE II. Authors of practice guidelines can use the AGREE Reporting Checklist prospectively during the drafting and final editing stage, to ensure that all necessary information is included, and retrospectively after the guideline is completed, as a quality assurance step.
This explains why although the AGREE (Appraisal of Guidelines for Research and Evaluation) reporting checklist was derived from the AGREE II CPG assessment tool, they remain as two independent tools used for different purposes by the end users.
Hence, it is worth noting that the AGREE reporting checklist differs from the AGREE II assessment tool because the former is used to help clinical practice guideline [CPG] developers and authors determine how to report a CPG once it is complete, whereas the latter is an assessment tool used to appraise the quality of an existing CPG.
It is recommended to carefully examine the user’s manual for the development of AGREE II assessment tool to identify the different research methodologies for evaluation of public policy. This is because high-quality CPGs are essential in bridging gaps between policy, best practice, and patient choice, to enhance healthcare quality and patient outcomes.
The attached full-texts provide the references for the user's manual for the development of AGREE II instrument. These are very useful because they describe a whole host of research methodologies for evaluation of methodologic quality of clinical practice guidelines, which can also be applied in the evaluation of quality of public policies.
It depends on which one you are measuring since not all are measured the same. For example, for culture there are several already approved methodologies but in particular I would recommend the Nid Index, which is somewhat more expensive but much more effective. https://gestiondesarts.hec.ca/wp-content/uploads/2022/06/22099_Paper.pdf