6 what are common values of d what legal settings d

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Unformatted text preview: tributions and equal variances, variances, If false alarms and misses are 1%, If d’ = 4.7. 4.7. If false alarm and miss rates are 5%, d’ = 3.3. 3.3. If false alarm and miss rates are 10%, d’= 2.6. ’= What are common values of d’? What Legal Settings d’ Detecting liars in a mock crime Detecting liars with polygraphs Detecting 0 0.5 - 1.0 0.5 Personnel Selection d’ Job placement with the Armed Job Forces Qualification Test Forces 0.6 - 0.8 Weather Forecasting Weather d’ Fog-risk in Canberra, Australia 24 hours earlier 0.8 0.8 18 hours earlier 12 hours earlier Tornados near Kansas City Tornados Rain in Chicago Minimum temp in Albuquerque 1.0 1.2 1.0 1.5 1.7 Medical Settings Medical d’ Detecting breast cancer w mammograms Detecting brain lesions with RN Scans 1.7 Experts detecting cervical cancer Detecting cervical cancer with computer Detecting based systems 1.8 based Detecting prostate cancer with PSA tests Detecting Detecting brain lesions with CT Scans Detecting 2.9 1.3 1.3 1.4 1.6 1.6 2.0 2.0 2.4 - Signal detection theory and empirical estimates of d’ (with all possible estimates (with technological advances) tells us we are not achieving levels of accuracy that are even remotely desirable. even What should this imply for policy? What...
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