The Experts below are selected from a list of 144 Experts worldwide ranked by ideXlab platform
Timothy R. Robicheaux - One of the best experts on this subject based on the ideXlab platform.
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The effects of mock jurors' beliefs about eyewitness performance on trial judgments
Psychology Crime & Law, 2012Co-Authors: Tess M. S. Neal, Ashley Christiansen, Brian H. Bornstein, Timothy R. RobicheauxAbstract:Abstract Two experiments examined how mock jurors' beliefs about three factors known to influence eyewitness memory accuracy relate to decision making (age of eyewitness and presence of weapon in Study 1, length of eyewitness identification decision time in Study 2). Psychology undergraduates rendered verdicts and evaluated trial participants after reading a Robbery–Murder trial summary that varied eyewitness age (6, 11, 42, or 74 years) and weapon presence (visible or not) in Study 1 and eyewitness decision length (2–3 or 30 s) in Study 2 (n = 200 each). The interactions between participant belief about these variables and the manipulated variables themselves were the heart of this study. Participants' beliefs about eyewitness age and weapon presence interacted with these manipulations, but only for some judgments – verdict for eyewitness age and eyewitness credibility for weapon focus. The exploratory meditational analyses found only one relation: juror belief about eyewitness age mediated the relation ...
Miguel Pérez-garcía - One of the best experts on this subject based on the ideXlab platform.
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Are psychological measures and actuarial data equally effective in discriminating among the prison population? Analysis by crimes
PloS one, 2018Co-Authors: Carlos Burneo-garcés, Manuel Fernández-alcántara, Agar Marín-morales, Miguel Pérez-garcíaAbstract:The ability of a wide range of psychological and actuarial measures to characterize crimes in the prison population has not yet been compared in a single study. Our main objective was to determine if the discriminant capacity of psychological measures (PM) and actuarial data (AD) varies according to the crime. An Ecuadorian sample of 576 men convicted of Robbery, Murder, Rape and Drug Possession crimes was evaluated through an ad hoc questionnaire, prison files and the Spanish adaptation of the Personality Assessment Inventory. Discriminant analysis was used to establish, for each crime, the discriminant capacity and the classification accuracy of a model composed of AD (socio-demographic and judicial measures) and a second model incorporating PM. The AD showed a superior discriminant capacity, whilst the contribution of both types of measures varied according to the crime. The PM generated some increase in the correct classification percentages for Murder, Rape and Drug Possession, but their contribution was zero for the crime of Robbery. Specific profiles of each crime were obtained from the strongest significant correlations between the value of each explanatory variable and the probability of belonging to the crime. The AD model is more robust when these four crimes are characterized. The contribution of AD and PM depends on the crime, and the inclusion of PM in actuarial models moderately optimizes the classification accuracy of Murder, Rape, and Drug Possession crimes.
Tess M. S. Neal - One of the best experts on this subject based on the ideXlab platform.
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The effects of mock jurors' beliefs about eyewitness performance on trial judgments
Psychology Crime & Law, 2012Co-Authors: Tess M. S. Neal, Ashley Christiansen, Brian H. Bornstein, Timothy R. RobicheauxAbstract:Abstract Two experiments examined how mock jurors' beliefs about three factors known to influence eyewitness memory accuracy relate to decision making (age of eyewitness and presence of weapon in Study 1, length of eyewitness identification decision time in Study 2). Psychology undergraduates rendered verdicts and evaluated trial participants after reading a Robbery–Murder trial summary that varied eyewitness age (6, 11, 42, or 74 years) and weapon presence (visible or not) in Study 1 and eyewitness decision length (2–3 or 30 s) in Study 2 (n = 200 each). The interactions between participant belief about these variables and the manipulated variables themselves were the heart of this study. Participants' beliefs about eyewitness age and weapon presence interacted with these manipulations, but only for some judgments – verdict for eyewitness age and eyewitness credibility for weapon focus. The exploratory meditational analyses found only one relation: juror belief about eyewitness age mediated the relation ...
Carlos Burneo-garcés - One of the best experts on this subject based on the ideXlab platform.
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Are psychological measures and actuarial data equally effective in discriminating among the prison population? Analysis by crimes
PloS one, 2018Co-Authors: Carlos Burneo-garcés, Manuel Fernández-alcántara, Agar Marín-morales, Miguel Pérez-garcíaAbstract:The ability of a wide range of psychological and actuarial measures to characterize crimes in the prison population has not yet been compared in a single study. Our main objective was to determine if the discriminant capacity of psychological measures (PM) and actuarial data (AD) varies according to the crime. An Ecuadorian sample of 576 men convicted of Robbery, Murder, Rape and Drug Possession crimes was evaluated through an ad hoc questionnaire, prison files and the Spanish adaptation of the Personality Assessment Inventory. Discriminant analysis was used to establish, for each crime, the discriminant capacity and the classification accuracy of a model composed of AD (socio-demographic and judicial measures) and a second model incorporating PM. The AD showed a superior discriminant capacity, whilst the contribution of both types of measures varied according to the crime. The PM generated some increase in the correct classification percentages for Murder, Rape and Drug Possession, but their contribution was zero for the crime of Robbery. Specific profiles of each crime were obtained from the strongest significant correlations between the value of each explanatory variable and the probability of belonging to the crime. The AD model is more robust when these four crimes are characterized. The contribution of AD and PM depends on the crime, and the inclusion of PM in actuarial models moderately optimizes the classification accuracy of Murder, Rape, and Drug Possession crimes.
Ashley Christiansen - One of the best experts on this subject based on the ideXlab platform.
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The effects of mock jurors' beliefs about eyewitness performance on trial judgments
Psychology Crime & Law, 2012Co-Authors: Tess M. S. Neal, Ashley Christiansen, Brian H. Bornstein, Timothy R. RobicheauxAbstract:Abstract Two experiments examined how mock jurors' beliefs about three factors known to influence eyewitness memory accuracy relate to decision making (age of eyewitness and presence of weapon in Study 1, length of eyewitness identification decision time in Study 2). Psychology undergraduates rendered verdicts and evaluated trial participants after reading a Robbery–Murder trial summary that varied eyewitness age (6, 11, 42, or 74 years) and weapon presence (visible or not) in Study 1 and eyewitness decision length (2–3 or 30 s) in Study 2 (n = 200 each). The interactions between participant belief about these variables and the manipulated variables themselves were the heart of this study. Participants' beliefs about eyewitness age and weapon presence interacted with these manipulations, but only for some judgments – verdict for eyewitness age and eyewitness credibility for weapon focus. The exploratory meditational analyses found only one relation: juror belief about eyewitness age mediated the relation ...
