One week following the intervention , a significantly higher proportion of students in Intervention B demonstrated correct technique for the Diskus , Turbuhaler , and pMDI ( 60.0 % , 70.9 % , and 69.1 % , respectively ) than did students in Intervention A ( 27.8 % , 40.7 % , and 42.6 % , respectively , p < 0.005 ) .