The UIS Glossary includes statistical terms related to education, science, technology and innovation, culture, and communication & information . Some of the entries contain translations in one or more of the following languages: Arabic, English, French and Spanish. Other entries provide more detailed information, such as definitions, calculation formulas for indicators and sources. Indicators are marked with an asterisk (*).

This is a dynamic tool, which is regularly updated by the UIS. The Institute welcomes feedback from users. Questions and comments should be sent to
Browse by letter
Search by word
  • Language
  • English
  • French
  • Spanish
  • Arabic
  • Russian
  • Chinese
Browse by tag
Show all terms on one page

Convenience/haphazard or accidental sampling

Sample units are only selected if they can be accessed easily and conveniently. This is a non-probability sampling method.

Échantillonnage de commodité ou à l'aveuglette

Unités d'échantillonnage sont sélectionnées que si on peut y avoir facilement et commodément accès.

Conveniencia/muestreo casual o fortuito

Solo se seleccionarán unidades de muestras que permitan un acceso fácil y conveniente. Este el método no probabilístico de muestreo.