For example, patients with weakened immune symptoms might be more likely to catch such an infection. To minimize the risk of other patient variables interfering with the data, the nurses whose hand-washing methods would be subject to study would be chosen from the wider sampling at random, with the controls upon the extreme cases cited above. The nurses would be identified as frequent or low-frequency hand-washers, depending on how much or how often they washed their hands during patient treatment, after, and before. The number of nosocomial infections in the patients they cared for would likewise be tracked, and thus extent to which frequent hand-washing could prevent the spread of infectious agents that give rise to such antibiotic-resistant complaints would be discerned by tracking the correlation between infection and amount of hand-washing used by the nurse.

The advantage of using a video observance and tracking methodology to obtain the random...
[ View Full Essay]