Upper/lower groups by total score (default 27% per Kelley).
Usage
morie_psymet_discrimination(data, pct = 0.27)
Arguments
- data
Numeric matrix or data.frame of items.
- pct
Numeric in (0, 0.5); proportion for the upper/lower group split (default 0.27, the Kelley-Cureton rule).
Value
data.frame with item, d.