ASTM_E_2229_-_09.pdf

Designation:E222909Standard Practices forInterpretation of Psychophysiological Detection ofDeception(Polygraph)Data1This standard is issued under the fixed designation E2229;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These practices establish procedures for the systematicinterpretation and analysis of Psychophysiological Detection ofDeception(PDD)data.1.2 Any test data analysis procedure used shall be correctlymatched to the PDD examination format.Examiners shall useevaluation methods for which they have been formally trained.1.2.1 Acceptable test data analysis procedures are thosepublished in refereed or technical journals,and for whichpublished replications of the procedures have confirmed theirefficacy.2.Terminology2.1 Definitions of Terms Specific to This Standard:2.1.1 3position scalewhole number values from-1to 1assigned systematically to responses to relevant and compari-son questions.These values are summed,and the PDD out-come is governed by specified decision rules for which thesesums are used.2.1.2 7position scalewhole number values from-3 to 3assigned systematically to responses to relevant and compari-son questions.These values are summed,and the PDD out-come is governed by specified decision rules for which thesesums are used.2.1.3 ranka number assigned to individual responseswithin a PDD recording hierarchically,according to relativeresponse intensity.2.1.4 rank order scoringassignment of ranks according torelative magnitude of the responses.The PDD outcome isgoverned by specified decision rules using these ranks.2.1.5 respiration line lengthsum of the length of therespiration waveform over a fixed time period.2.1.6 response amplitudemagnitude of a response fromstimulus onset to maximum expression of the response withinthe response window.2.1.7 response durationperiod between a phasic responseonset and return to baseline.2.1.8 response latencytime between stimulus and re-sponse onsets.2.1.9 response windowthe period in which physiologicalresponding normally occurs and recovers after stimulus onset.Response windows vary by channel.2.1.10 scorea number systematically assigned to an estab-lished set of comparisons within a PDD recording.2.1.11 spot scoresum of scores associated with an indi-vidual relevant question across all test recordings.2.1.12 stimulus onsetcommencement of stimulus presen-tation.2.1.13 tonic levelresting or baseline activity level of theexaminee.2.1.14 total numerical scoresum of scores for an entireseries of charts and questions.3.Summary of Practices3.1 Global Evaluation:3.1.1 Evaluators utilizing global interpretation shall:3.1.1.1 Be formally trained in global interpretation.3.1.1.2 Confirm that the recordings are suitable for globalevaluation.If they are not suitable,no evaluation shall beundertaken for the purpose of diagnosing truthfulness ordeception.Nothing shall preclude an evaluator from reportingevidence of countermeasures when this evidence exists.3.1.1.3 Use analysis methods generally recognized to beaccurate.3.1.2 When possible,numerical evaluation shall be pre-ferred over global evaluation.3.2 Numerical Evaluation:3.2.1 Evaluators employing numerical evaluation shall firstverify that the PDD recordings are suitable for evaluation.Ifthey are not suitable,no evaluation shall be undertaken for thepurpose of diagnosing truthfulness or deception.3.2.1.1 Nothing shall preclude an evaluator from reportingevidence of countermeasures when this evidence exists.3.2.2 There are four principal components to numericalevaluation.They are:1These practices are under the jurisdiction ofASTM Committee E52 on ForensicPsychophysiology and are the direct responsibility of Subcommittee E52.05 onPsychophysiological Detection of Deception(PDD).Current edition approved March 1,2009.Published March 2009.Originallyapproved in 2002.Last previous edition approved in 2002 as E2229 02.DOI:10.1520/E2229-09.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2.1 Identification of diagnostic tracing features.3.2.2.2 Assignment of numerical values according to therelative intensity of the tracing features.3.2.2.3 Computations based on the numerical values.3.2.2.4 Decision rules that result from the computations.3.2.3 While others may occur in individual cases,there arefive empirically established diagnostic features in the respira-tion channel.They are:3.2.3.1 Suppression of respiration amplitude.3.2.3.2 Slowing of breathing rate(increase in cycle time,orbradypnea).3.2.3.3 Change in the inhalation/exhalation time ratio.3.2.3.4 Apnea.3.2.3.5 Rise in the baseline of the respiration cycles.All ofthe diagnostic features in respiration,except the rise in base-line,are captured by a