period effect

(redirected from treatment by period interaction)

period effect

An effect occurring during a clinical trial in which subjects are observed and no treatment is administered.
References in periodicals archive ?
As this study used a cross-over design, the period effect and treatment by period interaction was calculated using a method as described by Altman (19), before determining the treatment effect (20,21).
In our study, both the motor and EEG seizure duration demonstrated neither period effect nor treatment by period interaction.
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