The number of rule infractions during the 4 - month intervention period was compared with the number of rule infractions during the 4 - month period before the intervention. (hqlo.biomedcentral.com)
Upon completion of the 12 - week intervention period, all participants were invited to complete a follow - up assessment. (beyondblue.org.au)
At the end of the sleep hygiene period, the 14 - day intervention period commenced. (dreampadsleep.com)