Yr of publication
-Were study subjects in sham controlled studies reported to be blind? (Yes / No / Unclear)|
-If yes / unclear, was the blinding tested for success? (Yes / No)
-If yes, was it successful? (Yes / No)
-Were study subjects in studies with control group reported to be naive? (Yes / No / Unclear)|
-Was the origin of the subjects reported (Yes / No)
-If yes, does it allow to exclude any interest? (Yes / No / Unclear)
|Were study subjects reported to have been randomly allocated to study groups? (Yes / No / Unclear)||Were study groups comparable in relation to symptoms when studying symptomatic subjects (duration and pain intensity) (NA when cross-over study design)? (Yes / No)||Were the intervention and control(s) well described (at least where and how)? (Yes / No)||Was the assessor reported to be blind to group allocation? (Yes / No)||Were losses and exclusions of study subjects reported or obvious in result section (including in tables or graphs)? (Yes / No / Unclear)||Was the person who statistically analyzed the data reported to be blind to group allocation? (Yes / No)||Comments by the technical experts (i) on the statistical analysis, and (ii) in relation to the methodology and/or technical aspects|
|Quality score (risk of bias, also including an external validity criteria) and classification|
-Yes (but in relation to the outcome)|
-The authors used a Student t tests to compare means instead of using a mixed-model ANOVA, followed by post-hoc tests if needed.
-The authors did not study how RT (for correct answers) varied with angle, which is the main analysis conducted in the literature on such data. Therefore, without such a (usually linear) trend analysis it is not possible to understand if the overall mean effect observed by the authors is due to a change in slope (reflecting a change in processing speed) or in intercept (reflecting a change in stimulus encoding).
-Between-group difference pre-post significant only with one-sided t-test.
-The between-group difference pre-post is not reported for the simple RT task but it seems that a contribution of the simple RT to the RT of the complex task cannot be excluded.
-Unclear whether errors were also counted.
|NA||= Unclear 0.5 pt||Yes 1 pt||NA (healthy subjects)||
-Yes 0.5 pt|
-Yes 0.5 pt
|No 0 pt||Yes 1 pt||No 0 pt|