SDT Summary Statistics from Counts

Compute d', criterion, and beta from 2x2 SDT counts (hits, false alarms, misses, correct rejections).

Usage

sdt_summary_from_counts(
  hits,
  fas,
  misses,
  cr,
  correction = c("loglinear", "half", "none")
)

Arguments

hits

Number of hits.

fas

Number of false alarms.

misses

Number of misses.

cr

Number of correct rejections.

correction

Correction for extreme rates ("loglinear", "half", or "none").

Value

A list with rates and SDT metrics.

Examples

# 70 hits, 30 misses; 20 false alarms, 80 correct rejections
summ <- sdt_summary_from_counts(hits = 70, fas = 20, misses = 30, cr = 80)
summ$dprime
#> [1] 1.349772
summ$c
#> [1] 0.1561724