kct {rpf}

Knox Cube Test dataset

Description

These data from Wright & Stone (1979, p. 31) were fit with Winsteps 3.73 using a 1PL model (slope fixed to 1).

References

Wright, B. D. & Stone, M. H. (1979). Best Test Design: Rasch Measurement. Univ of Chicago Social Research.

Examples

data(kct)