Undertaking a process that has been performed before can beuseful for several reasons: to see if the results are reproducibleunder unchanged conditions, to see if the process still produces thesame result after a prolonged period of time, and to average oraccumulate the results of the repeated process. Replication of otherprocesses, however, can be unnecessary ‘reinvention of the wheel’.This editorial discusses several clinical and research processes inphysiotherapy that do or do not benefit from replication, with thepurpose of encouraging physiotherapists to undertake replicationwhen it is useful and to discourage redundant replication.
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