Question: Meta - analysis - Mean effect size In 2 0 0 8 , a group of researchers from the University of Murcia in Spain performed
Metaanalysis Mean effect size
In a group of researchers from the University of Murcia in Spain performed a metaanalysis study of the benefits of cognitivebehavioral treatment for obsessivecompulsive disorder OCD In their study, independent experimental studies involving a total of subjects were compared using metaanalysis techniques. For each trial, outcome measures were identified for subjects in both control and experimental groups, and the effect sizes standardized mean differences between treatment and control and standard errors were calculated for each study. Source: RosaAlczar A SnchezMeca, J GmezConesa, A & MarnMartnez F Psychological treatment of obsessivecompulsive disorder: A metaanalysis. Clinical Psychology Review,
Suppose you conduct a similar review using studies, resulting in an effect size, and a standard error for each study. The data is shown in the following table. For each study, calculate the confidence limits of the effect size. Enter your results into the table.
Note: A positive effect size indicates a favorable outcome to the treatment that is a positive effect and a negative effect size indicates a favorable outcome to the control that is; a negative effect
tableStudydCI CI
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