Detecting and resolving errors in coding and data entry.

A cleaning technique that can be programmed for automatic detection in computer-assisted interviewing.

Examples are Cramer’s phi and the correlation coefficient.

The value or category in a distribution with the highest frequency.

A graphic display of a univariate distribution.

In elaboration analysis, these control for the extraneous variable.

Consists of editing, coding, data entry, and data cleaning.

Indicates how much the dependent variable changes for every one-unit increase in the independent variable.

The middle value in a distribution.

A graphic depiction of a bivariate distribution.

Replacing missing values in data analysis by estimating values from the available data.

Shows whether the association in a contingency table is statistically significant.