Widely used interventions or interventions that have been used for a long time are not necessarily beneficial.
Educational interventions that have not been properly evaluated, but are widely used or have been used for a long time, are often assumed to work. Sometimes, however, they may have negative effects or be of doubtful benefit.
For example, teaching to students’ learning styles is still a common practice even though there is no reliable evidence that this practice improves student outcomes.
BEWARE of common practice that is not evidence-based.
REMEMBER Do not assume that interventions are beneficial because they are widely used or have been used for a long time, unless this has been shown in systematic reviews of fair comparisons of interventions.