APPENDIX A: CHILD LABOR DATA METHODOLOGY The purpose of this
addendum is to describe the methods for collecting child labor
data and discuss the challenges of collecting accurate estimates
on working children. Presently, there is no internationally
endorsed definition of working children, or universally
prescribed methodology for collecting data on child labor. The
lack of concepts and methods for collecting child labor data has
made it difficult to obtain reliable statistics on working
children. Statistics from the individual country profiles
presented in this report are taken from various sources. These
sources include estimates from nongovernmental organizations
(NGOs), international agencies, and government household
surveys. In some instances, a range of statistics on the extent
of working children may be given for a single country to reflect
the varying degrees of measurement within a country. The
following discussion seeks to introduce the reader to the
challenges in constructing child labor statistics