Définition Raw data

Raw data or primary data are collected directly related to their object of study (statistical units). When people are the subject of an investigation, we may choose the form of a survey, an observation or an experiment.

Surveys especially present the advantage that they allow for a vast array of options in terms of analysis.

Only if we can access all of the primary data of a survey, i.e. the individual responses of all respondents on all issues of an investigation, can we calculate distributions or correlations and such. In contrast to raw data, we speak of secondary data if the data have already been aggregated and thus no longer contain all of the information of the original investigation. 

Les définitions de notre encyclopédie sont des explications simplifiées de termes. Notre but est de rendre ces définitions compréhensibles pour un large public. Par conséquent, il est possible que certaines d’entre elles ne soient pas entièrement à la hauteur des standards scientifiques.