Although randomised controlled trials (RCTs) have many merits and are suitable for interventions such as pharmaceuticals, there is a mismatch between RCTs and therapy. RCTs presuppose interventions that are standardised, specific, time-limited and measurable, characteristics that are less straightforward for therapy. Instead, a pluralistic evidence base is required for therapy.
Sahanika Ratnayake (Mon,) studied this question.