When measuring positive impacts, measurements such
as underweight (weight for age), stunting (height for
age), and wasting (height for weight), which are known
as anthropometric data, can be rapidly and reliably
performed in the field, and they require minimal
technology. These anthropometric data are sensitive to
both acute and chronic changes within time
periods (3-12 months), and they can be readily
measured and monitored by a project, making
them very good KPIs.