A systematic review investigating fatigue, psychological and cognitive impairment following TIA and minor stroke: protocol paper
Grace M Moran, Benjamin Fletcher, Melanie Calvert, Max G Feltham, Catherine Sackley and Tom Marshall
Heterogeneity has a key role in meta-analysis methods and can greatly affect conclusions. However, true levels of heterogeneity are unknown and often researchers assume homogeneity. We aim to: a) investigate the prevalence of unobserved heterogeneity and the validity of the assumption of homogeneity; b) assess the performance of various meta-analysis methods; c) apply the findings to published meta-analyses.