0%83Â°55Â°Mostly cloudy today with a high of 83 Â°F (28.3 Â°C) and a low of 55 Â°F (12.8 Â°C). 0%84Â°59Â°Partly cloudy today with a high of 84 Â°F (28.9 Â°C) and a low of 59 Â°F (15.0 Â°C). 0%86Â°62Â°Sunny today with a high of 86 Â°F (30.0 Â°C) and a low of 62 Â°F (16.7 Â°C).
The basic tenet of a meta-analysis is that there is a common truth behind all conceptually similar studies, but which has been measured with a certain error within individual studies.
What is a systematic review or meta-analysis? A systematic review answers a defined research question by collecting and summarising all empirical evidence that fits pre-specified eligibility criteria. A meta-analysis is the use of statistical methods to summarise the results of these studies. Systematic reviews, just like other research articles, can be of varying quality. 1  They are a significant piece of work (the Centre for Reviews and Dissemination at York estimates that a team will take 9-24 months), and to be useful to other researchers and practitioners they should have: 1  clearly stated objectives with pre-defined eligibility criteria for studies. 2  explicit, reproducible methodology.