Mugshot Exposure Effects: Retroactive Interference, Mugshot Commitment, Source Confusion, and Unconscious Transference

More than 25 years of research has accumulated concerning the possible biasing effects of mugshot exposure to eyewitnesses. Two separate metaanalyses were conducted on 32 independent tests of the hypothesis that prior mugshot exposure decreases witness accuracy at a subsequent lineup. Mugshot exposure both significantly decreased proportion correct and increased the false alarm rate, the effect being greater on false alarms. A mugshot commitment effect, arising from the identification of someone in a mugshot, was a substantial moderator of both these effects. Simple retroactive interference, where the target person is not included among mugshots and no one in a mugshot is present in the subsequent lineup, did not significantly impair target identification. A third metaanalysis was conducted on 19 independent tests of the hypothesis that failure of memory for facial source or context results in transference errors. The effect size was more than twice as large for "transference" studies involving mugshot exposure in proximate temporal context with the target than for "bystander" studies with no subsequent mugshot exposure.     

A Meta-Analytic Review of the Effects of High Stress on Eyewitness Memory

In the past 30 years researchers have examined the impact of heightened stress on the fidelity of eyewitness memory. Meta-analyses were conducted on 27 independent tests of the effects of heightened stress on eyewitness identification of the perpetrator or target person and separately on 36 tests of eyewitness recall of details associated with the crime. There was considerable support for the hypothesis that high levels of stress negatively impact both types of eyewitness memory. Meta-analytic Z-scores, whether unweighted or weighted by sample size, ranged from –5.40 to –6.44 (high stress condition–low stress condition). The overall effect sizes were –.31 for both proportion of correct identifications and accuracy of eyewitness recall. Effect sizes were notably larger for target-present than for target-absent lineups, for eyewitness identification studies than for face recognition studies and for eyewitness studies employing a staged crime than for eyewitness studies employing other means to induce stress.     

Corrupt political jurisdictions and voter participation

An FBI investigation of county purchasing activities in the mid 1980s resulted in the conviction of 55 of Mississippi's 410 county supervisors. Analyzing data from the state's 1987 county supervisor elections and hypothesizing that candidates' demands for votes increase as the gains from holding public office increase, we predict larger voter turnouts in the 26 of the state's 82 counties where supervisor corruption was exposed. Holding constant average voter turnout in the preceding U.S. presidential election and controlling for the competitiveness of supervisor races, we find that more Mississippians indeed voted in corrupt than in non-corrupt counties.     

Measuring damages for lost enjoyment of life: the view from the bench and the jury box

Civil jury instructions are inconsistent in defining what constitutes noneconomic damages, which may include pain, suffering, disability, disfigurement, and loss of enjoyment of life (LEL), among other injury sequelae. This inconsistency has been manifested recently in court decisions that have considered whether LEL should be treated as a separate element of noneconomic damages, distinct from pain and suffering. This paper reviews the case law on this issue and also describes a jury simulation experiment. Mock jurors awarded damages after they received instructions on noneconomic damages in which LEL was (1) not identified as a distinct element of damages; (2) defined as an element of damages distinct from pain and suffering, but participants awarded a single amount for noneconomic damages; or (3) defined as a distinct element of damages, and participants awarded separate amounts for LEL and pain and suffering. Instructions about LEL resulted in larger awards, but only when mock jurors also made a separate award for that element of damages.     

Gender,Politics and the State: What Do Middle Eastern Women Want?

The essays that follow are drawn from invited presentations of the Conference Group on the Middle East, which meets annually in conjunction with the American Political Science Association. The essays published here were presented in San Francisco, August 29-September 1, 1996, on one of three panels dealing with gender, politics and the state. Thanks to the continuing generosity of the Ford Foundation, five scholars from the Middle East were able to participate. The contributors would like to thank Farhad Kazemi, Deborah Gerner and Jean Lecafor their excellent comments at the panels. Louis J. Cantori, who has shepherded the Conference Group since its creation by a group of University of Chicago graduates more than a decade ago, deserves special thanks for his tireless commitment.