| 1. Data collected from the registration of life events such as births, deaths, marriages, and divorces. | | |
| 2. Released to the public 72 years after the information is collected. | | |
| 3. This data source includes diaries, letters, sales receipts, tax returns, and college transcripts. | | |
| 4. Repositories of data from either survey research or field research. | | |
| 5. A major advantage that physical evidence and many other available data sources have over experiments and surveys. | | |
| 6. Systematic biases in written records or in physical traces of the past as a result of what remains available for analysis. | | |
| 7. Use of historical events and evidence to develop or test social theory. | | |
| 8. A source of historical evidence that focuses the analysis on the activities and motivations of individual actors. | | |
| 9. A source of historical evidence produced by social systems that often provides information about social structure, social change, ordinary people. | | |
| 10. Indirect accounts of past events such as written histories. | | |
| 11. The systematic description of the symbolic content of verbal or nonverbal communication. | | |
| 12. In Sales’ analysis of comic strips this consisted of the central character; in Namenwirth’s analysis of British newspapers this consisted of the words in editorials. | | |