Both experiments were constructed using the same experimental design to eliminate methodological variables in order to render comparisons possible.
This review evaluated the SST literature published between 2000 and 2012 on a number of methodological variables.
We relax this assumption by carrying out a spatially explicit meta-analysis based on 30 studies of ecosystem service values in tropical forests from The Economics of Ecosystems and Biodiversity (TEEB) database, while controlling for economic, environmental and methodological variables.
Through a novel multi-study meta-analysis, we have analyzed and modeled relations between decoding strength in the visual ventral stream, and stimulus and methodological variables that differ across studies.
The methodological variables include different designs of WCF activities.
Evans et al. (2010) suggested that we need to consider learner, situational, and methodological variables in doing research to be able to close the perceived gap. Figure 1 exhibits the contributing variables.
We place more weight on the methodological variables that stem from economic theory or from generally accepted empirical results, such as those related to nominal rigidities, the wage bargaining characteristics or the pension system design.
Attempts were made to explore sources of heterogeneity by considering clinical (i.e., age, percentage of sex, type of AC injury, approach, number of bundle, time of plate removal and duration before surgery) and methodological variables (i.e., type of study) in the meta-regression model.
Likely causes for these variable results among laboratories have been discussed in detail previously, focused primarily on methodological variables [12], [13], [19], [33].
Meta-regression analysis identified key methodological variables that might affect the accuracy of results, and suggests that misconduct is reported more frequently in medical research.
