1,721,064 research outputs found
Simultaneous and sequential lineups: decision processes of accurate and inaccurate eyewitnesses
No full textThe cognitive processes and decision-making strategies of eyewitnesses were tested for their predictive qualities in determining the accuracy of identifications from lineups. The sequential lineup presentation was compared with the traditionally employed simultaneous lineup under culprit (target) present and culprit absent conditions. Consistent with previous research the sequential presentation resulted in an equivalent number of correct identifications compared to the simultaneous lineup but reduced false identification rates. Although sequential lineups were found to be associated with the use of absolute strategies, those shown a simultaneous lineup reported the use of both relative and absolute strategies. Accurate identifications and rejections were found to be associated with the use of absolute strategies, irrespective of lineup presentation or presence of target. Also accurate identifications, at least with a sequential lineup, were generally made faster than inaccurate identifications. These results are compared to previous studies with respect to the effect that mode of processing (relative versus absolute judgements) has on a witness's decision making and identification accuracy
Desperately seeking evidence: The recovered memory debate
No full textIn the 1990s we have seen a startling rise in reports of memories of childhood sexual abuse from adults alleging that the memories were previously `unavailable' to them. Such memories are often `recovered' during psychotherapy and have resulted in fierce debate concerning the reality and reliability of such memories. It is a debate that has elicited considerable controversy in the courts, in academic circles and in professional practice due to its personal, social and political implications. A criminal case based on the recovered memory of a murder was instrumental in bringing the debate to the attention of the public and courts. In 1990, George Franklin was convicted for the murder of a child based primarily on evidence from his daughter Eileen who claimed she had repressed the murder of her friend for 20 years (Maclean, 1993). The conviction was overturned following a successful appeal in 1995 but the case nevertheless remains a poignant example of impact of a recovered memory in the legal context. In the academic domain, recovered memories have presented memory researchers with some challenging questions. The debate has focused attention on conditions under which memories are recovered and the power of suggestion bringing the practices of psychotherapists under close scrutiny. Unfortunately some have interpreted this as an invasion of the therapist's domain and an attempt to undermine the credibility of therapists and victims. This has resulted in a polarisation of the debate, the consequences of which are well illustrated by recent reviews (Loftus and Ketchum, 1994; Ofshe and Watters, 1994, Lindsay and Read, 1995; Pendergrast, 1995). This paper will show how scientific research can inform the courts about the reliability of recovered memory evidence
Vulnerability to interrogative suggestibility from negative life events: A comparison of separated asylum-seeking youth and age-matched peers
No full textThe consistency of young asylum-seeker's verbal testimony is often critical in determining the outcome of their claims. It is well established that an interviewee may change their answers to appease an interviewer or in response to suggestions. Experiencing adversity during childhood may increase vulnerability in such interview situations. Here, the vulnerability to interview pressure of asylum-seeking youth separated from their caregivers as minors was compared with age-matched peers. Thirty participants (16–23 years) completed the Gudjonsson Suggestibility Scale (GSS2, measures of negative life events (NLEs) and non-verbal cognitive functioning measures. Vulnerability to interrogative suggestibility, non-verbal cognitive functioning and number of NLEs was compared between two groups. This preliminary data showed asylum-seeking youth as significantly more vulnerable to Shift; changes in response to interviewer feedback. NLEs and lower non-verbal cognitive functioning were significantly more common among the separated youth increasing vulnerability to Shift. The implications are discussed
False claims about false memory research
Full text linkPezdek and Lam [Pezdek, K. & Lam, S. (2007). What research paradigms have cognitive psychologists used to study “False memory,” and what are the implications of these choices? Consciousness and Cognition] claim that the majority of research into false memories has been misguided. Specifically, they charge that false memory scientists have been (1) misusing the term “false memory,” (2) relying on the wrong methodologies to study false memories, and (3) misapplying false memory research to real world situations. We review each of these claims and highlight the problems with them. We conclude that several types of false memory research have advanced our knowledge of autobiographical and recovered memories, and that future research will continue to make significant contributions to how we understand memory and memory errors
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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