These can be the result of flaws in the randomized controlled trials and/or unrecognized author bias." Level one evidence and the randomized controlled trials (RCTs) that comprise it are widely ...
In an RCT, the product is randomly assigned to a group ... Fourth, RCTs eliminate inherent bias. Many districts and schools pilot programs and products with volunteers before deciding whether ...
A total of seven RCTs that evaluated tramadol against a comparator (placebo, another agent, or behavioural therapy) and one RCT that evaluated different tramadol doses (eight RCTs in total ...