5. Quality Assurance

Example 2:

A 10 year old girl was weighed by the Measurement Teams in training. Her measured weights ranged from 25.8 to 26.8 kg with an ‘outlier’ of 20.6 kg.

	Measurer   Measure 1   25.8 kg 2   26.8 kg 3   25.9 kg 4   20.6 kg

The size measurements for this cooperative girl placed her at about the 10th percentile for weight for age. The outlier, which would appear to be an error in either reading the scale or in notation of the measurement, would place her at less than the 5th percentile of weight for age.

If this were an initial assessment, the data would raise a concern about her growth. The team decided this variation was too great and agreed to meet for a problem solving session.