Secondary data are data derived from primary dataPrimary data are data collected directly in relation to a research subject 'in the field.' In field research, this may include field observations and corresponding notes in field journals, interview transcripts, conversation protocols, as well as quantitative data collected through questionnaires, and data created with and by research participants, such as photographs, films, etc. Read More through further processing steps (e.g., statistical analyses) and then serve as a basis for additional evaluations. Secondary data are derived from primary data but no longer reflect the original form of the primary data. In social and cultural anthropology, this distinction between primary and secondary data, which is significant in statistics, is of little relevance.