81,816 responses from 2,922 respondents to 28 items.
About this table
Description
Data from an English proficiency exam (ECPE)
Reference
Templin, J., & Hoffman, L. (2013). Obtaining diagnostic classification model estimates using Mplus. Educational Measurement: Issues and Practice, 32, 37-50.
This codebook is reconstructed by the IRW from the IRW data standard and the script that built it, cdm.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).