From: A systematic review of hand hygiene improvement strategies: a behavioural approach
Design of study or assignment rating | |
Experimental: RCT, random allocation; CCT, quasi-random allocation; three data collection points before and after the intervention | 1 |
Quasi-experimental: CBA, comparable control sites | 1 |
Quasi-experimental: nonequivalent control sites | 0 |
Single group before-after tests with baseline measurement | 0 |
Content | |
Intervention is clearly described | 1 |
Sample size | |
Described and justified. An n per group sufficient to detect a significant effect (p < 0.05) with a power of 0.80 or reported calculation of power | 1 |
Validity and reliability of instruments | |
Unobtrusive observations, rater procedure described and r > 0.80 | 2 |
Unobtrusive observations, rater procedure not described or r < 0.80 | 1 |
Obtrusive observations, rater procedure described and r > 0.80 | 1 |
Obtrusive observations, rater procedure not described or r < 0.80 | 0 |
Volume of soap or hand alcohol used | 0 |
Test statistics | |
Test statistics are described | 1 |
Significance | |
p Value or confidence interval is given | 1 |