TAMU PSYC 371 - Expert Witnesses (6 pages)

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Expert Witnesses

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Expert Witnesses


Completed the discussion of correlation methods, experimental methods, and quasi-experiments. Introduction into expert witnesses

Lecture number:
Lecture Note
Texas A&M University
Psyc 371 - Forensic Psychology

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PSYC 371 1st Edition Lecture 3 Outline of Last Lecture I Roles of Forensic Psychologists II Historical Perspective a Cottage Industry i Tom Grisso ii APA Ethics Code III Lockhart v McCree a Death qualified IV McCleskey v Kemp V Roles a Basic Science b Discover Universal Laws of Functioning c Forensic Evaluation d Civil and Criminal Inquiries e Provide Reports and Testimony f Trial Consultation g Impartiality vs Adversarial Allegiance VI Correctional Psychology a Who They Are b What They do i Direct Treatment ii Administrative Duties iii Assessment Evaluation iv Research v Policy Evaluation vi Simultaneous vs Sequential Eyewitness Procedures VII Scientific Method a What science is i Logical ii Non circular Reasoning iii Objective and Reliable iv Falsifiable v Replicable VIII Junk Science IX Correlational Method X Operationalization Outline of Current Lecture XI Correlational Methods a Limitations of Correlational Analysis XII Experimental Method a Internal vs External validity XIII Quasi Experiments XIV What do Forensic Psychologists do a Applied Science i Expert witnesses XV Admissibility of Psychological Testimony a Frye Standard b Daubert vs Merrell Dow 1993 c Daubert Standard i Falsifiability ii Peer Review iii Reliability iv Acceptance XVI Expert Witness XVII Mental Health Professional in the Courts XVIII Hired guns Charlatans and Voodoo Psychobabble XIX Perceived Objectivity and Neutrality a The conduit educator b The advocate c The hired gun d The 4th cell Current Lecture Correlational Method Significance testing o What s the chance that there is no relationship between the 2 variables Limitations of Correlational Analysis o Causality required a controlled investigation in which we examine the effect of one or more independent variables on a dependent variable o Design comparison groups Experimental groups Control groups Experimental Method Randomly assign participants o Randomly choose whether or not the participant is in a certain testing group or not

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