Matrix (multiple choice)
The Matrix (multiple choice) element presents the respondent with an array of columns and rows. Each cell of the array can be configured to a list of selectable items. These selectable items can be presented to the respondent as the following cell types:
Dropdown, Checkbox, Radiogroup, Single Input, Comment, Boolean, Expression, Rating. The number of columns and rows, the titles of rows, and the value of the selectable items can be edited via Activity element settings.