The professional engineer: Virtues and learning

The ethical codes of the professional engineering bodies identify the responsibilities of the engineer. Of equal importance to the codes are the virtues which enable the engineer to fulfil these responsibilities. After briefly reviewing such virtues this paper argues that the systematic learning of virtues is possible in a formal way through learner centred learning. Central to this learning experience is the development of integrity which focuses the other major virtues and enables reflection upon them. A review of undergraduate courses suggests how this can be achieved. Rev’d. Dr. Simon Robinson is a lecturer in the Centre for Business and Professional Ethics at the University of Leeds.     

An animal sound simulator

A portable and inexpensive animal sound simulator is described, and the use of the simulator in the production of song mimics of maleDrosophila species is illustrated.     

"With a little help from my friends...": the role of co-witness relationship in susceptibility to misinformation

Inaccuracies in eyewitness accounts can occur when witnesses are exposed to post-event misinformation via discussion with a co-witness. The current study examined the role of co-witness relationship by comparing the memory performance of pairs of romantic couples, friends and previously unacquainted strangers with that of individuals. Ninety-six participants viewed an event and then discussed the witnessed event with a stranger, a romantic partner or a friend. One member of each pair saw a theft take place during the witnessed event. Individual group participants did not discuss the witnessed event with anyone. Results indicate that all co-witness dyads produced less accurate recall accounts than participants who did not interact with another witness. However, witnesses who were previously acquainted with their co-witness (either in a friendship or romantic relationship) were significantly more likely to report information obtained from their co-witness that they had not seen themselves. Prior acquaintance also led to an increased number of incorrect attributions of both guilt and innocence.     

The value of RCT evidence depends on the quality of statistical analysis

The authors examined statistical practices in 193 randomized controlled trials (RCTs) of psychological therapies published in prominent psychology and psychiatry journals during 1999-2003. Statistical significance tests were used in 99% of RCTs, 84% discussed clinical significance, but only 46% considered-even minimally-statistical power, 31% interpreted effect size and only 2% interpreted confidence intervals. In a second study, 42 respondents to an email survey of the authors of RCTs analyzed in the first study indicated they consider it very important to know the magnitude and clinical importance of the effect, in addition to whether a treatment effect exists. The present authors conclude that published RCTs focus on statistical significance tests ("Is there an effect or difference?"), and neglect other important questions: "How large is the effect?" and "Is the effect clinically important?" They advocate improved statistical reporting of RCTs especially by reporting and interpreting clinical significance, effect sizes and confidence intervals.     

Familial patterns and the origins of individual differences in synaesthesia

The term synaesthesia has been applied to a range of different sensory-perceptual and cognitive experiences, yet how these experiences are related to each other is not well understood. Not only are there disparate types of synaesthesia, but even within types there are vast individual differences in the way that stimuli induce synaesthesia and in the subjective synaesthetic experience. An investigation of the inheritance patterns of different types of synaesthesia is likely to elucidate whether a single underlying mechanism can explain all types. This study is the first to systematically survey all types of synaesthesia within a familial framework. We recruited 53 synaesthetes and 42% of these probands reported a first-degree relative with synaesthesia. We then directly contacted as many first-degree relatives as possible and collected complete data on synaesthetic status for all family members for 17 families. We found that different types of synaesthesia can occur within the same family and that the qualitative nature of the experience can differ between family members. Our findings strongly indicate that various types of synaesthesia are fundamentally related at the genetic level, but that the explicit associations and the individual differences between synaesthetes are influenced by other factors. Synaesthesia thus provides a good model to explore the interplay of all these factors in the development of cognitive traits in general.     

Treating family relational trauma: a recursive process using a decision dialogue

This article describes a therapeutic process that combines individual and family sessions to maximize therapeutic opportunities to bring forward, understand, validate, and empower children's experience as equal participants in family therapy. The aim is to strengthen relational bonds within the family. Drawing from earlier work with families where incest had occurred, the authors present a recursive process that utilizes a "decision dialogue" to link individual and family sessions. Clinical examples are provided.     

Vulvar pain: a phenomenological study of couples in search of effective diagnosis and treatment

Vulvar vestibulitis syndrome (VVS), a vulvar pain disorder, continues to puzzle medical and mental health professionals due to its unknown etiology and lack of effective treatment. This study used transcendental phenomenology methodology to explore the experiences of couples in which the woman has a diagnosis of VVS. Sixteen in-depth semi-structured interviews were conducted with 13 heterosexual couples and 3 women. Four essences emerged: (1) In search of ... the medical journey required extensive searching for knowledgeable and respectful practitioners to provide treatment. (2) The process of developing a personal understanding of this disorder led many couples to question their role in causing and maintaining VVS. (3) Developing strategies for coping with painful intercourse led to three strategies: becoming non-sexual, using alternatives to vaginal sex, and altering or enduring painful intercourse. (4) Feelings of isolation were experienced as adapting to this chronic pain syndrome was often a lonely process. Clinical suggestions included: treating the couple, not just the woman with VVS; encouraging couples to broaden definitions about the importance and primacy of vaginal intercourse and suggest alternative sexual activities less likely to cause vulvar pain; developing shared meaning as a couple, and assisting couples in locating physicians and resources. Suggestions are relevant for couples with VVS and those with chronic health problems affecting sexual relationships.     

What is the shape of developmental change?

Developmental trajectories provide the empirical foundation for theories about change processes during development. However, the ability to distinguish among alternative trajectories depends on how frequently observations are sampled. This study used real behavioral data, with real patterns of variability, to examine the effects of sampling at different intervals on characterization of the underlying trajectory. Data were derived from a set of 32 infant motor skills indexed daily during the first 18 months. Larger sampling intervals (2-31 days) were simulated by systematically removing observations from the daily data and interpolating over the gaps. Infrequent sampling caused decreasing sensitivity to fluctuations in the daily data: Variable trajectories erroneously appeared as step functions, and estimates of onset ages were increasingly off target. Sensitivity to variation decreased as an inverse power function of sampling interval, resulting in severe degradation of the trajectory with intervals longer than 7 days. These findings suggest that sampling rates typically used by developmental researchers may be inadequate to accurately depict patterns of variability and the shape of developmental change. Inadequate sampling regimes therefore may seriously compromise theories of development.