A rank-order procedure in which objects are sorted into piles (with respect to a specific attribute). Used to quickly compare a large number of objects (60–140) against each other.
The number of objects per pile is limited such that all piles together reproduce the shape of a normal distribution.
The Ministry of Health has developed 25 measures for implementation in hospitals. Rank them by their effectiveness against the spread of infection — please only one measure per box.
Extremely effective
Not at all effective
