28,140 responses from 1,407 respondents to 20 items.
About this table
Description
Responses to Czech medical school admissions exam
Reference
Drabinova, A. & Martinkova, P. (2017). Detection of differential item functioning with nonlinear regression: A non-IRT approach accounting for guessing. Journal of Educational Measurement, 54(4), 498–517, doi: 10.1111/jedm.12158.
DIF and DDF Detection by Non-Linear Regression Models
Codebook
This codebook is reconstructed by the IRW from the IRW data standard and the script that built it, difNLR.R. It is our best reading, not the source’s own codebook, and it may contain mistakes. Where the two disagree, the source data are the authority. If you find an error, please tell us.
Column
What it is
Source column
IRW standard columns
id
IRW standard Identifier for the focal unit being measured — typically a person, but sometimes another entity (e.g., a word in a lexical task).