Roberts data

Data frame with summary data from 14 comparative studies.

Usage

data("Roberts")

Format

One data frame with 2 variables.

SDM

Effect sizes (standardized differences in means)

SE

Standard error of the effect sizes

Details

The Roberts data set is a meta-analysis of 14 studies comparing 'set shifting' ability (the ability to move back and forth between different tasks) in people with eating disorders and healthy controls.

Source

Roberts ME, Tchanturia K, Stahl D, Southgate L, Treasure J. A systematic review and meta-analysis of set-shifting ability in eating disorders. Psychological Medicine 2007, 37: 1075--1084.

Higgins JPT, Thompson SG, Spiegelhalter DJ. A re-evaluation of random-effects meta-analysis. Journal of the Royal Statistical Society. Series A (Statistics in Society) 2009, 172: 137--159.