Table 5 Response criterion in the pre-test and final post-test sessions
From: Perceptual learning in the identification of lung cancer in chest radiographs
Image format | Training status | Pre-test | Final post-test | Statistical results (ANOVA) |
|---|---|---|---|---|
Intact (N = 60) | Untrained | −0.29 | −0.17 | No change in criterion. No main effects or interaction, ps > .24. |
Trained | −0.24 | −0.13 | ||
Small cutout (N = 60) | Untrained | 0.65 | 0.25 | An initial bias toward “normal” was reduced (p < .002). No other effects (ps > .16) |
Trained | 0.69 | 0.35 | ||
Large cutout (N = 12) | Untrained | 0.30 | 0.28 | No change in criterion. No main effects or interaction, ps > .25 |
Trained | 0.40 | 0.19 | ||
Background (N = 48) | Untrained | 0.09 | 0.09 | No change for untrained images. Response became more liberal for trained images (p < .04) Significant interaction p < .001 |
Trained | 0.16 | −0.09 |