Measuring the Accuracy of Facial Approximations: A Comparative Study of Resemblance Rating and Face Array Methods
Identifieur interne : 006317 ( Main/Exploration ); précédent : 006316; suivant : 006318Measuring the Accuracy of Facial Approximations: A Comparative Study of Resemblance Rating and Face Array Methods
Auteurs : Carl N. Stephan [Australie] ; Jody Cicolini [Australie]Source :
- Journal of Forensic Sciences [ 0022-1198 ] ; 2008-01.
Descripteurs français
- Wicri :
- topic : Médecine légale.
English descriptors
- KwdEn :
- Adult males, Anatomy students, Answer sheet, Appl psychol, Approximate resemblance, Approximation, Array, Assessment methods, Assessor, Biomedical sciences, Chance rate, Chance rates, Cicolini accuracy, Cranial suture closure, Craniofacial identification, Different assessors, Different variables, Eyewitness identification, Face array, Face array image, Face array images, Face array photographs, Face array tests, Face arrays, Face pool, Facial, Facial approximation, Facial approximation accuracy, Facial approximation methods, Facial approximations, Facial features, Facial reconstruction, Forensic, Forensic analysis, Forensic medicine, Forensic sciences, Graphpad prism, Graphpad software, Great resemblance, Guideline, Helmer, Henneberg, Identification rate, Median, Median resemblance score, Median scores, Mouth width, Mouth width determination, Nontarget, Nontarget face, Other nontarget, Phys anthropol, Plaster cast, Post test, Prag neave, Psychol, Rating, Rating scale, Recognition performance, Recognition responses, Recognition results, Recognition tests, Resemblance, Resemblance rating, Resemblance rating scale, Resemblance rating scales, Resemblance rating scores, Resemblance rating test, Resemblance rating tests, Resemblance ratings, Resemblance score, Resemblance scores, Sequential lineup presentation, Sequential presentation, Significant difference, Significant levels, Similar resemblance rating scores, Single face, Skull, Slight resemblance, Soft tissue depths, Statistical package, Statistical tests, Stephan, Stephan henneberg, Target face, Unfamiliar assessors, Unmatched design.
- Teeft :
- Adult males, Anatomy students, Answer sheet, Appl psychol, Approximate resemblance, Approximation, Array, Assessment methods, Assessor, Biomedical sciences, Chance rate, Chance rates, Cicolini accuracy, Cranial suture closure, Craniofacial identification, Different assessors, Different variables, Eyewitness identification, Face array, Face array image, Face array images, Face array photographs, Face array tests, Face arrays, Face pool, Facial, Facial approximation, Facial approximation accuracy, Facial approximation methods, Facial approximations, Facial features, Facial reconstruction, Forensic, Forensic analysis, Forensic medicine, Forensic sciences, Graphpad prism, Graphpad software, Great resemblance, Guideline, Helmer, Henneberg, Identification rate, Median, Median resemblance score, Median scores, Mouth width, Mouth width determination, Nontarget, Nontarget face, Other nontarget, Phys anthropol, Plaster cast, Post test, Prag neave, Psychol, Rating, Rating scale, Recognition performance, Recognition responses, Recognition results, Recognition tests, Resemblance, Resemblance rating, Resemblance rating scale, Resemblance rating scales, Resemblance rating scores, Resemblance rating test, Resemblance rating tests, Resemblance ratings, Resemblance score, Resemblance scores, Sequential lineup presentation, Sequential presentation, Significant difference, Significant levels, Similar resemblance rating scores, Single face, Skull, Slight resemblance, Soft tissue depths, Statistical package, Statistical tests, Stephan, Stephan henneberg, Target face, Unfamiliar assessors, Unmatched design.
Abstract
Abstract: The success of facial approximation is thought to depend, at least in part, upon the “accuracy” of the constructed face. However, methods of accuracy assessment are varied and this range in methods may be responsible for the disparate results reported in the literature. The aim of this study was to determine if the accuracy results of one facial approximation were comparable across two different assessment methods (resemblance ratings and simultaneous face array tests using unfamiliar assessors) and if resemblance ratings co‐varied with recognition responses. True‐positive recognition performance from the facial approximation was poor (21%) while resemblance scores using the same facial approximation were moderately high (3 out of 5 on a five‐point scale). These results are not, therefore, consistent and indicate that either different variables are being evaluated by the methods, or the same variable is being examined but with different weight/calibration. Further resemblance ratings tests of the facial approximation to three foil faces from the face array revealed that resemblance scores were similar irrespective of which face was compared, and did not closely correspond with the degree of recognition performance. This was especially the case for isolated comparisons of single faces to the facial approximation. Collectively, these results indicate that resemblance ratings are: (i) insensitive measures of a facial approximation’s accuracy; and (ii) inconsistent with results of unfamiliar simultaneous face‐array recognition results. These data suggest that familiar and unfamiliar recognition tests should be given increased weight in contrast to current resemblance rating tests.
Url:
DOI: 10.1111/j.1556-4029.2007.00622.x
Affiliations:
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<term>Significant levels</term>
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<term>Soft tissue depths</term>
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<term>Statistical tests</term>
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<term>Array</term>
<term>Assessment methods</term>
<term>Assessor</term>
<term>Biomedical sciences</term>
<term>Chance rate</term>
<term>Chance rates</term>
<term>Cicolini accuracy</term>
<term>Cranial suture closure</term>
<term>Craniofacial identification</term>
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<term>Different variables</term>
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<term>Face array photographs</term>
<term>Face array tests</term>
<term>Face arrays</term>
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<term>Median scores</term>
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<term>Mouth width determination</term>
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<term>Rating scale</term>
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<term>Resemblance score</term>
<term>Resemblance scores</term>
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<term>Sequential presentation</term>
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<term>Skull</term>
<term>Slight resemblance</term>
<term>Soft tissue depths</term>
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<term>Statistical tests</term>
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<front><div type="abstract">Abstract: The success of facial approximation is thought to depend, at least in part, upon the “accuracy” of the constructed face. However, methods of accuracy assessment are varied and this range in methods may be responsible for the disparate results reported in the literature. The aim of this study was to determine if the accuracy results of one facial approximation were comparable across two different assessment methods (resemblance ratings and simultaneous face array tests using unfamiliar assessors) and if resemblance ratings co‐varied with recognition responses. True‐positive recognition performance from the facial approximation was poor (21%) while resemblance scores using the same facial approximation were moderately high (3 out of 5 on a five‐point scale). These results are not, therefore, consistent and indicate that either different variables are being evaluated by the methods, or the same variable is being examined but with different weight/calibration. Further resemblance ratings tests of the facial approximation to three foil faces from the face array revealed that resemblance scores were similar irrespective of which face was compared, and did not closely correspond with the degree of recognition performance. This was especially the case for isolated comparisons of single faces to the facial approximation. Collectively, these results indicate that resemblance ratings are: (i) insensitive measures of a facial approximation’s accuracy; and (ii) inconsistent with results of unfamiliar simultaneous face‐array recognition results. These data suggest that familiar and unfamiliar recognition tests should be given increased weight in contrast to current resemblance rating tests.</div>
</front>
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