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Understanding autism
Understanding autism

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Randomised Control Trial (RCT)

A systematic evaluation of an intervention in which participants are assigned randomly to intervention and ‘no treatment’ or ‘treatment as usual’ groups. This avoids biases in the way participants are allocated to groups, which could otherwise affect the outcome, making the intervention itself difficult to evaluate. RCTs are typically large-scale studies involving many participants. (See also intervention group; treatment as usual group.)

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