| spelling {edstan} | R Documentation |
Spelling data
Description
Item response data regarding student spelling performance on four words: infidelity, panoramic, succumb, and girder. The sample includes 284 male and 374 female undergraduate students from the University of Kansas. Each item was scored as either correct or incorrect.
Usage
spellingFormat
A wide-form data.frame (one row per person) with the following columns:
- male
Indicator for whether person is male.
- infidelity
Indicator for whether person spelled infidelity correctly.
- panoramic
Indicator for whether person spelled panoramic correctly.
- succumb
Indicator for whether person spelled succumb correctly.
- girder
Indicator for whether person spelled girder correctly.
Source
Thissen, D., Steinberg, L. and Wainer, H. (1993). Detection of Differential Item Functioning Using the Parameters of Item Response Models. In Differential Item Functioning, edited by Holland. P. and Wainer, H., 67-114. Hillsdale, NJ: Lawrence Erlbaum.