item_design_rating: Verbal Aggression Data

In seonghobae/flirt.x32: Flexible Item Response Theory Modeling

Description

Data frame for item design matrix for for polytomous responses for the verbal aggression data. There are 25 columns for 24 items and one variable for category 2 (compared to 1) (same for 24 items). Two adjacent lines represent an item, one for category 1 and next for category 2 (category 0 is reference). This item design matrix assumes that a difference between category 1 to 2 is the same for all items (as in a rating scale model).

Format

A data frame in size 48 by 25.

i1 to i24

indicator variable for item 1 to 24

category:

category 1 (perhaps):0, category 2 (yes):1

References

De Boeck, P. and Wilson, M. (2004), Explanatory Item Response Models, Springer.

Examples

str(item_design_rating)

seonghobae/flirt.x32 documentation built on May 29, 2019, 6:54 p.m.