Certainty of evidence

The certainty (or quality) of evidence is the extent to which we can be confident that what the research tells us about a particular treatment effect is likely to be accurate. Concerns about factors such as bias can reduce the certainty of the evidence. Evidence may be of high certainty; moderate certainty; low certainty or very-low certainty.  Cochrane has adopted the GRADE approach (Grading of Recommendations Assessment, Development and Evaluation) for assessing certainty (or quality) of evidence. Find out more here: https://training.cochrane.org/grade-approach


Selena Ryan-Vig

About Selena Ryan-Vig

view all posts

Selena Ryan-Vig is the Communications and Engagement Officer at Cochrane UK. Her role primarily entails disseminating Cochrane evidence in accessible ways, managing Cochrane UK's website and social media accounts, and producing newsletters and infographics. With a colleague, Selena delivers interactive sessions to students from Years 10 to 13 to teach about evidence-based practice and to encourage critical thinking, particularly around healthcare claims made in the media. She also co-delivers talks for students to raise awareness of Cochrane and reliable, evidence-based resources. She has a psychology degree from the University of Bath. During her degree, she spent a placement year working in a national charity which provides support for young women affected by self-injury and training for professionals working with individuals who self-injure.

UA-49496932-1