Post‐identification feedback,confidence and recollections of witnessing conditions in child witnesses

Eyewitness confidence and detailed memory reports are often considered reliable indicators of the credibility of the eyewitness testimony. This study investigated how feedback concerning the accuracy of a lineup identification influences witnesses' confidence in the accuracy of their identification decision and their judgements concerning the witnessing experience. Fifty‐seven children (11–12 years) and 55 adults (17–39 years) viewed a video of a robbery and attempted to identify the culprit from a photo lineup. The culprit was not present. Participants received confirming feedback, disconfirming feedback, or no feedback on the accuracy of their identification. The confidence judgements and recollections of witnessing conditions of both children and adults were influenced by confirming and in some instances, disconfirming feedback. These findings imply that confidence and memory reports are easily distorted by non‐specific feedback and investigators should be sensitive to this particularly when dealing with vulnerable witnesses such as children. Copyright © 2004 John Wiley & Sons, Ltd.     

The effects of social influence on children's memory reports: the omission and commission error asymmetry

Children in two age groups (7 vs. 12 yrs, N= 174) individually interacted with a stranger and were later interviewed about this event. Right before the interview, each child encountered the stranger once again and he engaged in a conversation where he either suggested that a (central or peripheral) detail originally present in the event had actually not been there or that an originally non-present (central or peripheral) detail had in fact been there. It was hypothesized that the two types of misinformation would result in omission and commission errors respectively. The results showed that the social influence resulted in an asymmetric effect (i.e., more commission than omission errors). Importantly, we also found that the children made more errors with respect to the peripheral detail (a suitcase), compared to the central detail (a passenger). Younger children did not make more errors (neither omission nor commission errors) than older children.     

Tracking conversational repetition: an evaluation of target monitoring ability

The ability to track who one tells information to (target monitoring) is evaluated in the present study. Participants shared personal information with target persons across four sessions spaced one day apart, and were instructed not to duplicate information to the same person over successive conversations. Target monitoring success was evaluated both on‐line, during the information sharing sessions, and retrospectively, following the final session. On‐line monitoring, or avoiding telling someone what you told them before, was very good with only one prior shared fact (Sessions 2 and 3), but declined with two prior shared facts (Session 4). Retrospective monitoring, or remembering prior fact‐to‐person assignments, was most accurate for Session 1, but dropped off sharply for Session 2 and remained constant through Session 4. Temporal errors in retrospective fact‐to‐person assignment tend to shift forward in days (telescoping). Further research is needed on the complex interrelationship of source and target information exchanges. Copyright © 2006 John Wiley & Sons, Ltd.     

Infant-mother attachment can be improved through group intervention: a preliminary evaluation in Spain in a non-randomized controlled trial

The quality of infant-mother attachment has been linked to competence in different domains of child development. Research indicates that early intervention can enhance the quality of infant-mother attachment, though its efficacy in a group format has yet to be evaluated. The current study is aimed at examining the usefulness of a group intervention in enhancing infant-mother attachment. An intervention aimed at addressing aspects such as maternal responsivity, sensitivity and childrearing behaviour was developed by the researchers and experienced psychologists. The intervention spanned a period of 14 months starting from the third quarter of pregnancy. The intervention was evaluated among 24 mothers from the Basque region of Spain. The sample consisted of children of both genders in a similar proportion: 45.8% were boys and 54.2% were girls. The children in this sample were full-term born and did not present symptoms of any serious pre- or postnatal complications. The intervention had a statistically non-significant medium effect. Infants whose mothers had received the intervention showed higher rates of secure attachment compared to children from the control group, as assessed by the Strange Situation observation procedure. A potentially significant confounding variable, maternal attachment, was balanced across the intervention and comparison groups. We can tentatively point out that a group intervention may enhance the quality of infant-mother attachment. Nevertheless, because the study design was not randomized, the results of this study remain preliminary and need replication in a full randomized controlled trial designed study.     

I saw it for longer than you: the relationship between perceived encoding duration and memory conformity

The memory conformity effect is when people's memories become similar to one another's following a discussion. The present study examined whether an individual's beliefs in the quality of their memory, relative to another person's, mediates susceptibility to memory conformity. Perceived encoding duration was manipulated by telling dyad members that one person had encoded a set of pictures for either half or twice as long as their partner. In fact, actual encoding duration was the same for all participants. Dyad members each encoded slightly different versions of otherwise identical pictures and discussed them prior to an individual free recall test. Participants who believed that they had encoded the pictures for half as long as their partner were more susceptible to memory conformity, as indicated by their increased tendency to report errant items at test that had been encountered from their partner rather than items that they had actually seen. This effect of perceived encoding duration on memory conformity was mediated through response order. A source monitoring test found that these unseen items were errantly attributed to the pictures approximately 50% of the time. The findings are discussed in relation to the role of metamemory in susceptibility to memory conformity.     

Do strict rules and moving images increase the reliability of sequential identification procedures?

Live identification procedures in England and Wales have been replaced by use of video, which provides a sequential presentation of facial images. Sequential presentation of photographs provides some protection to innocent suspects from mistaken identification when used with strict instructions designed to prevent relative judgements (Lindsay, Lea, & Fulford, 1991 ). However, the current procedure in England and Wales is incompatible with these strict instructions. The reported research investigated whether strict instructions would enhance the reliability of identification from video. The effect of using moving rather than still video clips was also investigated. Participants witnessed a live staged incident, and attempted to identify the culprit later from police video lineups, which were run double blind. Strict instructions produced a significantly lower rate of correct identifications in culprit present lineups, but did not significantly reduce the rate of mistaken identification in culprit absent lineups. Moving images yielded fewer mistaken identifications in culprit absent lineups. Copyright © 2006 John Wiley & Sons, Ltd.     

A practice-specificity-based model of arousal for achieving peak performance

The authors propose a practice-specificity-based model of arousal for achieving peak performance. The study included 37 healthy male physical education students whom they randomly assigned to a high-arousal (n = 19) or low-arousal group (n = 18). To manipulate participants' level of arousal, the authors used motivational techniques. They used heart rate and the Sport Competition Anxiety Test (R. Martens, 1977) to measure the level of arousal that participants achieved. At the determined and given arousal state, the 2 groups performed the task (basketball free throws) for 18 sessions. Both groups performed a retention test at the 2 arousal levels immediately after the last exercise session, in the posttest, and after 10 days. Results showed that both groups learned the task similarly and achieved their peak performance at their experienced arousal level. When tested at an arousal level that differed from the one that they experienced throughout practice sessions, participants' performance had deteriorated significantly. Performance of the task seemed to have integrated with the arousal level of the participants during the task learning. The findings of this study suggest a practice-specificity-based explanation for achieving peak performance.     

Evaluating the Effectiveness of the Self‐Administered Interview© for Witnesses with Autism Spectrum Disorder

The widely used evidence‐based police interviewing technique, the Cognitive Interview, is not effective for witnesses with autism spectrum disorder (ASD). The present study examined whether a modification of the Cognitive Interview that removes the social element, the Self‐Administered Interview^©, is more useful in facilitating recall by ASD witnesses. One of the main components of the Cognitive Interview is context reinstatement, where the witness follows verbal instructions from the interviewer to mentally recreate the personal and physical context that they experienced during the event. The present findings showed that this procedure is not effective for witnesses with ASD in SAI format in which the social component of its administration is removed. However, the SAI sketch plan component did elicit more correct details from the ASD group, although to a lesser degree than for the comparison group. Theoretical and practical implications of the findings are discussed. Copyright © 2014 John Wiley & Sons, Ltd.     

Eyewitness Evidence Obtained with the Self‐Administered Interview© Is Unaffected by Stress

The Self‐Administered Interview© (SAI) serves to elicit eyewitness statements directly after the crime. Witnesses could still experience stress then. Because stress during retrieval produces memory‐impairing effects, this study sought to compare the SAI with free recall under stress. An interaction between stress and interview was expected such that the SAI would elicit more comprehensive accounts than free recall in the control, but not in the stress group. One hundred and twenty‐seven participants underwent a stress or control task. They witnessed a live staged crime and completed an SAI or a free recall. The SAI elicited a higher number of correct verifiable event details and a higher number of correct and incorrect perpetrator details than free recall. Accuracy rates were unaffected. Unexpectedly, despite causing moderate stress‐induced cortisol elevations, stress exposure did not influence memory performance and did not interact with interview type. Hence, the SAI can safely be used, when witnesses are moderately stressed.Copyright © 2015 John Wiley & Sons, Ltd.