triplets: Triplets of Pairwise Comparisons

In ForceChoice: Forced-Choice Modeling Based on Item Response Theory and Cognitive Diagnostic Models

Triplets of Pairwise Comparisons

Description

A synthetic forced-choice data set containing pairwise comparison responses for the first 200 of 2000 participants on four triplets. The data were originally generated as part of Brown and Maydeu-Olivares (2012) and are distributed in the published R package thurstonianIRT.

In each triplet, participants ranked three alternative statements according to their preference. The rankings were then converted into dichotomous pairwise responses for all three within-triplet comparisons.

Format

A data frame with 200 rows and 12 integer columns. Values are 0/1 pairwise preference indicators. Overall, the 12 statements measure three traits. Items 1, 4, 7, and 10 load on trait 1; items 2, 5, 8, and 11 load on trait 2; and items 3, 6, 9, and 12 load on trait 3. Items 4, 9, and 11 are reverse-keyed.

i1i2

Response preference between item 1 and item 2.

i1i3

Response preference between item 1 and item 3.

i2i3

Response preference between item 2 and item 3.

i4i5

Response preference between item 4 and item 5.

i4i6

Response preference between item 4 and item 6.

i5i6

Response preference between item 5 and item 6.

i7i8

Response preference between item 7 and item 8.

i7i9

Response preference between item 7 and item 9.

i8i9

Response preference between item 8 and item 9.

i10i11

Response preference between item 10 and item 11.

i10i12

Response preference between item 10 and item 12.

i11i12

Response preference between item 11 and item 12.

Source

Brown, A. & Maydeu-Olivares, A. (2012). Fitting a Thurstonian IRT model to forced-choice data using Mplus. Behavior Research Methods, 44, 1135-1147. doi:10.3758/s13428-012-0217-x

The data file was taken from the published R package thurstonianIRT.

Examples

data("triplets")
dim(triplets)
head(triplets)

ForceChoice documentation built on Sept. 13, 2026, 1:06 a.m.