The object that is coded in a content analysis.

A primary source for social scientists is social media.

A list of study variables together with definitions, values, and instructions.

Data collected from the registration of births, deaths, marriages, and divorces.

The set of words and/or phrases that are coded in a computerized content analysis.

Allowing congressional members to edit proofs creates this problem for the Congressional Record.

An examination of intervening mechanisms that might link observed events in comparative-historical research.

Systematic description of the symbolic content of communications.

The study of mass incarceration used this method in examining the histories of penal policies in eight states.

Study of the structure and changes in human populations.

Presents all possible combinations of outcomes for a set of causal variables.

Repositories of data from surveys, ethnographies, and in-depth interview research.