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Table 1 Recognition performance of radiology experts and residents for upright and inverted mammogram and face trials in terms of hits (hit), false alarms (fa), sensitivity (d’) and bias (c)

From: Inversion effects in the expert classification of mammograms and faces

Test Group Up (hit) Up (fa) Up (d’) Up (c) Inv (hit) Inv (fa) Inv (d’) Inv (c) Up-Inv (d’)
Mam Experts 0.55 0.15 1.25 0.48 0.52 0.18 0.99 0.43 0.26 *
  Residents 0.52 0.35 0.46 0.18 0.59 0.31 0.79 0.15 −0.33
Faces Experts 0.92 0.17 2.50 −0.18 0.63 0.19 1.36 0.26 1.19 **
  Residents 0.94 0.30 2.18 −0.50 0.69 0.24 1.33 0.15 1.16 **
  1. *p < 0.05. **p < 0.01