Entwicklung und Evaluation eines interaktiven Films für Jugendliche zur Vermittlung von Gerichtswissen

An interactive movie for juvenile witnesses produced by the author was evaluated in terms of its effectiveness to convey court relevant knowledge to 16-year-old and 17-year-old students. A control group design was used. Controls received a brochure containing information comparable to the movie which was also developed by the author. The aim of the study was to empirically evaluate the movie in order to make it available to juvenile witnesses as an instrument for court preparation in the future. A total of 52 students aged 16 and 17 years at a training college were investigated and court knowledge was measured prior to testing. Participants in the treatment group then viewed the movie, which was produced by the author. The control group received a brochure containing information very similar to the contents of the movie. Approximately 2 weeks later, court relevant knowledge was again assessed and both treatment and control groups showed a strong and significant increase in court relevant knowledge. Comparing the groups showed that the effects tended to be stronger for the treatment group than for the control group. It was also investigated if legal misconceptions could be reduced by the interventions. Analyses indicated that effects were not significant and there was no significant difference between the groups. A significant increase of court relevant knowledge could be found for both treatment conditions. The weak effects concerning the reduction of legal misconceptions could be due to the fact that they were not explicitly presented in the movie but were treated more indirectly by presenting correct knowledge only.     

The right touch: Stroking of CT-innervated skin promotes vocal emotion processing

Research has revealed a special mechanoreceptor, called C-tactile (CT) afferent, that is situated in hairy skin and that seems relevant for the processing of social touch. We pursued a possible role of this receptor in the perception of other social signals such as a person’s voice. Participants completed three sessions in which they heard surprised and neutral vocal and nonvocal sounds and detected rare sound repetitions. In a given session, participants received no touch or soft brushstrokes to the arm (CT innervated) or palm (CT free). Event-related potentials elicited to sounds revealed that stroking to the arm facilitated the integration of vocal and emotional information. The late positive potential was greater for surprised vocal relative to neutral vocal and nonvocal sounds, and this effect was greater for arm touch relative to both palm touch and no touch. Together, these results indicate that stroking to the arm facilitates the allocation of processing resources to emotional voices, thus supporting the possibility that CT stimulation benefits social perception cross-modally.     

Personality and the perception of TV violence

An experiment was carried out to investigate relationships between individuals' personality characteristics and their perceptions of violent TV portrayals. A panel of 40 viewers rated brief violent episodes from five categories of programming, contemporary British crime-detective series, American police series, westerns, science-fiction series and cartoons on eight scales. These responses were then related to viewers' scores on the N, E and P dimensions of the EPQ. Results showed that violent scores from contemporary settings were rated as more serious than scores from non-contemporary and fantastic settings. In addition, viewers exhibited individual differences in ratings of TV violence which were related to certain of their EPQ scores. In particular, high N scorers tended to perceive violence generally, but especially that from contemporary British drama, as more serious than did low N scorers. This study indicates the need to include personality measures in the analysis of audience reactions to TV violence.     

Generation and mnemonic encoding induce a mirror effect in the DRM paradigm

Encoding tasks that increase memory accuracy are appealing from both practical and theoretical perspectives. Within the Deese/Roediger-McDermott (DRM) paradigm, we found that generating list words from anagrams (relative to reading) produced a mirror effect: enhanced recognition of studied words coupled with a reduction in false recognition. Signal detection analyses suggest that the increase in correct recognition was due to enhanced item-specific encoding of the list words, whereas the reduction in false recognition was due to enhanced strategic monitoring at test (i.e., a distinctiveness heuristic), rather than to reduced relational encoding at study. Further support for a distinctiveness heuristic account was obtained using both "theme judgment" instructions and within-group conditions. In our final experiment, we replicated this mirror effect using a purely mnemonic (self-referential) encoding task, showing that extra perceptual cues are not necessary to induce participants to adopt a successful memory-improvement strategy at test.     

Television viewing and perceptions of women's roles on television and in real life

Television has been heavily criticized in the popular press for the way it depicts women. Narrow and stereotyped portrayals of women may, according to some writers, cultivate misconceptions among the public about the way women are or should be. In a new investigation of this issue a survey study was undertaken with a large British sample in the London ITV region in which data were obtained on TV viewing behaviours and perceptions of the way women are portrayed on TV and beliefs about how they are or should be in real life. Results showed that only weight of action-drama viewing was significantly related to respondents' perceptions of women. Heavy viewers of action-drama content were more likely than light viewers to perceive women in reality as self-reliant, not quarrelsome with other women, not dependent on attractiveness to get on, and not preoccupied by romantic affairs. However, heavy action viewers also tended to believe that most women actually want to become mothers, and do not want careers, and more importantly that women ought to be like this. Only in some respects were these relationships consonant with those inferred by content analysts.     

Cognitive psychology meets psychometric theory: on the relation between process models for decision making and latent variable models for individual differences

This article analyzes latent variable models from a cognitive psychology perspective. We start by discussing work by Tuerlinckx and De Boeck (2005), who proved that a diffusion model for 2-choice response processes entails a 2-parameter logistic item response theory (IRT) model for individual differences in the response data. Following this line of reasoning, we discuss the appropriateness of IRT for measuring abilities and bipolar traits, such as pro versus contra attitudes. Surprisingly, if a diffusion model underlies the response processes, IRT models are appropriate for bipolar traits but not for ability tests. A reconsideration of the concept of ability that is appropriate for such situations leads to a new item response model for accuracy and speed based on the idea that ability has a natural zero point. The model implies fundamentally new ways to think about guessing, response speed, and person fit in IRT. We discuss the relation between this model and existing models as well as implications for psychology and psychometrics.     

How eye movements affect unpleasant memories: support for a working-memory account

Eye movement desensitization and reprocessing can reduce ratings of the vividness and emotionality of unpleasant memories-hence it is commonly used to treat posttraumatic stress disorder. The present experiments compared three accounts of how eye movements produce these benefits. Participants rated unpleasant autobiographical memories before and after eye movements or an eyes stationary control condition. In Experiment 1, eye movements produced benefits only when memories were held in mind during the movements, and eye movements increased arousal, contrary to an investigatory-reflex account. In Experiment 2, horizontal and vertical eye movements produced equivalent benefits, contrary to an interhemispheric-communication account. In Experiment 3, two other distractor tasks (auditory shadowing, drawing) produced benefits that were negatively correlated with working-memory capacity. These findings support a working-memory account of the eye movement benefits in which the central executive is taxed when a person performs a distractor task while attempting to hold a memory in mind.     

Can test list context manipulations improve recognition accuracy in the DRM paradigm?

Only test-based manipulations can be used to help people distinguish accurate from false memories once events have been encoded. In two experiments we examined how the type of studied words (weak vs strong associates, or less vs more memorable associates) and nonstudied lure words (related vs unrelated lures) on the test list affect recognition accuracy in the Deese-Roediger-McDermott paradigm. False recognition of critical lures decreased substantially in the related-lure context, but so did correct recognition of studied words. False recognition was little affected by the studied-word manipulations. In general, participants claimed to recognise critical lures as often as weak associates or less memorable studied words but less often than either strong associates or more memorable studied words. The test-list context affected how participants classified their recognition experiences but it did not systematically change their overall memory accuracy.     

Television and beliefs about health care and medical treatment

A representative sample of London television viewers answered questions on their attitudes to the quality of medical care they might receive if hospitalized, on their beliefs about the scope for control over one’s health, on the Just World Scale, and on their experience of viewing each of three TV series dealing with health matters. One series is an anodyne soap opera, one a light-hearted talkshow, and the third is a powerful though cynical drama series. Viewing of the latter,The Nation’s Health, was negatively related to expectations of good treatment if hospitalized, a link that did not emerge with experience of the other two programs. Seen in greater detail, the ostensibly linear correlation appears more likely to be a U-shaped relationship with the heaviest viewers being resilient in confidence, unlike light viewers whose confidence may have been shaken enough to deter them from further viewing. The results are discussed as a parallel to the controversy between Gerbner et al. (1977) and Hirsch (1980).