items_fractions: Fraction Assessment Item Responses

Description Usage Format References


Fraction Assessment Item Responses




A matrix consisting of 536 rows and 20 columns. Thus, there are N = 536 subject responses to J = 20 items.

The subjects answered the following assessment items:


Tatsuoka, C. (2002), Data analytic methods for latent partially ordered classification models. Journal of the Royal Statistical Society: Series C (Applied Statistics), 51: 337–350. doi:10.1111/1467-9876.00272

Tatsuoka, K. K. (1984), Analysis of errors in fraction addition and subtraction problems (Final Report for Grant No. NIE-G-81-0002). Urbana: University of Illinois, Computer-Based Education Research Laboratory (CERL).

tmsalab/ecdmdata documentation built on Nov. 12, 2019, 12:09 a.m.