Selecting studies

Once a search is completed, relevant studies must then be selected without bias. Reviewers usually work independently and document the outcome of all disputed decisions. Some feel that those selecting the trials should be blind to the study's author, source (usually a journal), and the institution where the trial was undertaken. All have potential to bias the study selection. However, such blinding would often involve prohibitive effort. In any event, a systematic review should make explicit the degree of effort made to avoid selection bias at this crucial stage.

Funny Wiring Autism

Funny Wiring Autism

Autism is a developmental disorder that manifests itself in early childhood and affects the functioning of the brain, primarily in the areas of social interaction and communication. Children with autism look like other children but do not play or behave like other children. They must struggle daily to cope and connect with the world around them.

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