Facilitating Accuracy in Showup Identification Procedures: The Effects of the Presence of Stolen Property

Law enforcement personnel regularly present suspects to eyewitnesses using showups. In this study, we examined the impact of the presence of stolen property on live showup identification performance. Two hundred seventy university students were exposed to a simulated theft. During the subsequent showup, we manipulated the presence of the target and stolen property. Binary logistic regression analyses indicated that both factors independently predicted the accuracy of identification decisions. Participants were more accurate when the target was in the showup and when the stolen property was present during the identification. Consistent with the item, context, and ensemble theory of recognition, the presence of stolen property led to an increase in sensitivity, suggesting ensemble formation. Future research on showups should continue to examine contextual variables that may lead to changes in sensitivity or criterion shift. Copyright © 2012 John Wiley & Sons, Ltd.     

A Test of Voir Dire as a Remedy for the Prejudicial Effects of Pretrial Publicity1

The present experiment asked two questions: Does prejudicial pretrial publicity produce bias that may impair juror objectivity and, if it does, can extended, defense attorney-conducted voir dire (jury examination procedure) remedy its untoward effects? Subjects were 68 college undergraduates who had or had not read pretrial publicity one week before viewing a mock murder trial. Just prior to viewing the trial, subjects experienced either minimal or extended voir dire. Both pretrial publicity and voir dire produced significant main effects on subjects' perceptions of defendant culpability. Subjects exposed to pretrial publicity perceived the defendant as more culpable than subjects not exposed to pretrial publicity. Subjects who experienced extended voir dire perceived the defendant as less culpable than subjects who experienced minimal voir dire. The interaction between pretrial publicity and voir dire was nonsignificant, indicating that, contrary to our hypothesis, voir dire did not reduce the impact of pretrial publicity.     

Assessment of shame and guilt and their relationships to psychopathology.

Two studies are reported. First, we tested the previously validated Personal Feelings Questionnaire-2 (PFQ2; Harder & Zalma, 1990) shame and guilt measure and the Adapted Shame and Guilt Scale (ASGS; Hoblitzelle, 1982) Shame subscale against the newly introduced Self-Conscious Affect and Attribution Inventory (SCAAI; Tangney, 1990) for shame and guilt dispositions. Fifty-nine college undergraduates completed randomly ordered personality inventories reflecting constructs theoretically relevant to the presence of shame and guilt proneness. Correlations between the affect measures and personality variables showed evidence of validity for all shame scales. The PFQ2 Guilt subscale also demonstrated construct validity when partialled for shame, but the SCAAI did not. Second, we tested hypotheses regarding the relative importance of shame and guilt to various symptom types (Symptom Checklist-90-Revised; Derogatis, 1983) using 71 college undergraduates. Both emotions were approximately equally related to all major symptom clusters, but there was some evidence for differential patterns of relative importance for shame and guilt to different symptoms.     

Perceptions of sexual harassment: a re-examination of gender differences

There is mixed evidence for gender differences in perceptions of sexual harassment. To help clarify the existence of gender differences, we examined the sexual-harassment perceptions of 409 state government employees in the western United States. Few gender differences were found. We also compared the workers' perceptions to findings from a previous study of students (Terpstra & Baker, 1987). The relative ordering of the incidents' perceived severity was very similar, but workers perceived a number of incidents to be more harassing than did students. Thus, the major differences found were between students and workers, not between genders. Potential theoretical and methodological causes of these findings are discussed.     

Phoneme-monitoring reaction time and preceding prosody: Effects of stop closure duration and of fundamental frequency

In an earlier study, it was shown that listeners can use prosodic cues that predict where sentence stress will fall; phoneme-monitoring RTs are faster when the preceding prosody indicates that the word bearing the target will be stressed. Two experiments which further investigate this effect are described. In the first, it is shown that the duration of the closure preceding the release of the target stop consonant burst does not affect the RT advantage for stressed words. In the second, it is shown that fundamental frequency variation is not a necessary component of the prosodic variation that produces the predicted-stress effect. It is argued that sentence processing involves a very flexible use of prosodic information.     

Phonological abstraction in the mental lexicon

A perceptual learning experiment provides evidence that the mental lexicon cannot consist solely of detailed acoustic traces of recognition episodes. In a training lexical decision phase, listeners heard an ambiguous [f–s] fricative sound, replacing either [f] or [s] in words. In a test phase, listeners then made lexical decisions to visual targets following auditory primes. Critical materials were minimal pairs that could be a word with either [f] or [s] (cf. English knife–nice), none of which had been heard in training. Listeners interpreted the minimal pair words differently in the second phase according to the training received in the first phase. Therefore, lexically mediated retuning of phoneme perception not only influences categorical decisions about fricatives (Norris, McQueen, & Cutler, 2003), but also benefits recognition of words outside the training set. The observed generalization across words suggests that this retuning occurs prelexically. Therefore, lexical processing involves sublexical phonological abstraction, not only accumulation of acoustic episodes.     

Lexically guided retuning of letter perception

Participants made visual lexical decisions to upper-case words and nonwords, and then categorized an ambiguous N-H letter continuum. The lexical decision phase included different exposure conditions: Some participants saw an ambiguous letter "?", midway between N and H, in N-biased lexical contexts (e.g., REIG?), plus words with unambiguous H (e.g., WEIGH); others saw the reverse (e.g., WEIG?, REIGN). The first group categorized more of the test continuum as N than did the second group. Control groups, who saw "?" in nonword contexts (e.g., SMIG?), plus either of the unambiguous word sets (e.g., WEIGH or REIGN), showed no such subsequent effects. Perceptual learning about ambiguous letters therefore appears to be based on lexical knowledge, just as in an analogous speech experiment (Norris, McQueen, & Cutler, 2003) which showed similar lexical influence in learning about ambiguous phonemes. We argue that lexically guided learning is an efficient general strategy available for exploitation by different specific perceptual tasks.