Description Format References Examples
This data come from Thissen et al. (1993, p.71) that examined performance of under- graduates on four spelling items ‘infidelity’, ‘panoramic’, ‘succumb’ and ‘girder’. Each spelling item was scored either as correct or incorrect. The sample includes 285 male and 374 female undergraduate students from the University of Kansas.
A data frame with 659 observations on the four spelling items.
There is one more variable, male
that takes value 1 for male and 0 for female.
Thissen, D., L. Steinberg, and H. Wainer. 1993. Detection of differential item functioning using the parameters of item response models. In Differential Item Functioning, ed. P. Holland and H. Wainer, 67-114. Hillsdale, NJ: Lawrence Erlbaum.
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