CIET methods are used for monitoring the progress of large multi-faceted national and international social programmes as well as the prevalence of a single disease. National progress toward achievement of the goals of the 1990 World Summit for Children and the Millennium Development Goals has been measured in Afghanistan
. Development of indicators for specific diseases has taken place in Mexico
CIET methods, by synthesising both qualitative and quantitative data from a variety of sources, typically produces richer evidence than most other types of monitoring study. The logistical efficiency of the approach leads to equal or larger sample sizes for a much lower cost than standard methods.