A visualization technique for Bayesian reasoning

We tested a method for solving Bayesian reasoning problems in terms of spatial relations as opposed to mathematical equations. Participants completed Bayesian problems in which they were given a prior probability and two conditional probabilities and were asked to report the posterior odds. After a pretraining phase in which participants completed problems with no instruction or external support, participants watched a video describing a visualization technique that used the length of bars to represent the probabilities provided in the problem. Participants then completed more problems with a chance to implement the technique by clicking interactive bars on the computer screen. Performance improved dramatically from the pretraining phase to the interactive‐bar phase. Participants maintained improved performance in transfer phases in which they were required to implement the visualization technique with either pencil‐and‐paper or no external medium. Accuracy levels for participants using the visualization technique were very similar to participants trained to solve the Bayes theorem equation. The results showed no evidence of learning across problems in the pretraining phase or for control participants who did not receive training, so the improved performance of participants using the visualization method could be uniquely attributed to the method itself. A classroom sample demonstrated that these benefits extend to instructional settings. The results show that people can quickly learn to perform Bayesian reasoning without using mathematical equations. We discuss ways that a spatial solution method can enhance classroom instruction on Bayesian inference and help students apply Bayesian reasoning in everyday settings.     

Writing program with word prediction for a young man with multiple disabilities: a preliminary assessment

This study assessed a writing program with word prediction, which completed the writing of a word and spoke it out only when there was certainty that such a word was the correct one. The assessment was carried out with a young man with multiple disabilities, who typically used a word-processing program without word prediction. The two programs were compared on the time required by the participant for writing general sentences, through a social validation assessment, and eventually a check on the participant's preference. Analysis showed the program with word prediction was significantly more effective in terms of the writing time, which was halved, and was deemed preferable by 40 raters (psychology students) involved in the social validation assessment and by the participant himself. Implications of the findings are discussed.     

A brief account of statistical tests for single-case research with persons with developmental disabilities

Education and rehabilitation research with persons with developmental disabilities is often based on single-case designs (with small numbers of ordinal data points collected at irregular intervals) and relies upon graphic display and visual inspection of the data. This paper (a) provides a brief account of some statistical tests, which may serve to supplement the visual inspection process and (b) underlines some of their strengths and limitations to help education and rehabilitation personnel make a reasonable choice among them.     

Visual recognition under conditions of high and low discrimination redundancy

The purpose of this investigation was to measure the minimum interval for recognition under conditions of high and low discrimination redundancy. The minimum interval for recognition is the briefest interval between two stimuli at which the first stimulus can be processed. Two sets of four digits were used. Digits were selected so that one set exhibited high discrimination redundancy and the other low discrimination redundancy. Ten Ss viewed digits with high discrimination redundancy, and 10 Ss viewed digits with low discrimination redundancy. The minimum interval for recognition for Ss tested with high discrimination redundancy was nearly twice as large as the minimum interval for recognition of the digits with low discrimination redundancy.     

Theological Education for a Religiously Radicalized World: An African Pentecostal Assist

The resurgence of Pentecostal Christianity at a time of increased religious radicalization in Africa is a disconcerting development. This problem is further compounded by the dearth of analytical research that explores the role theological education should play in preparing Pentecostalism to engage a religiously radicalized Africa. This paper offers a response in three ways: first, it reviews the legacy of missionary theological education and offers an overview of religion and state relations in Africa. Second, it discusses theological education and the implications of the rise of Pentecostalism in a context of religious radicalization. Third, it outlines how theological education could be reinvigorated to enable Pentecostalism to confront the challenges of religious radicalization in Africa. The paper concludes that theological education is a compelling stimulus that enables African Pentecostalism to promote peaceful coexistence and tolerance in ways that bear witness to the gospel of peace as well as reflect the African agency of faith. 1     

Business Faculty Perceptions and Actions Regarding Ethics Education

This paper examines faculty perceptions regarding ethical behavior among colleagues and students, and faculty practices with regard to teaching ethics in three institutions over a 4-year period. Faculty reported an uneven pattern of unethical behavior among colleagues over the period. A majority of business courses included ethics, however as both a specific topic on the syllabus and within course discussions. The percentage of courses with ethics discussions increased in 2006, however, the time allocated to these discussions decreased. These results suggest that faculty are approaching ethics instruction less formally, raising concerns over the success of curriculum integration.     

Third-party punishment: altruistic and anti-social behaviours in in-group and out-group settings

This study aims at exploring the decision-making process involved in third-party punishment (TPP) within an economic frame, using the TPP game. We investigated altruistic punishment, that is, the behaviour of spending one's own money, with no personal gain, to punish those who violate the norms of cooperation. We analysed this behaviour, in an in-group and out-group game setting, to compare how individuals behave with members of their own group (in-group) and with members of another group (out-group). In particular, groups were defined on a real nationality basis (Chinese or Italian). Our results showed altruistic punishment behaviour in both experimental groups and this tendency emerged as more prominent when faced with unfair play towards a member of one's own group. Furthermore, both groups exhibited a propensity for anti-social punishment behaviour: many participants spent small amounts of money to punish fair behaviour, regardless of national group membership.     

Caring for the Care-Giver: The Benefit of a Peer Supervision Group

I presented the following case to my leader-led peer supervisiongroup twice as the case evolved over the course of one year. During my firstmeetings with Mr. and Mrs. M we discussed a prenatal diagnosis of a skeletaldysplasia at thirty-three weeks of pregnancy and the option of a third trimesterpregnancy termination. One year later I presented follow-up on the outcome ofthe affected pregnancy, a new pregnancy, and Mrs. M's suicide. Although bothsegments of the case were completed by the time I presented, my peersupervision group was invaluable. With the encouragement and support of groupmembers, I could openly express and process my sadness and grief for the M'ssituation and the loss of Mrs. M's life.     

Communicative impairment in traumatic brain injury: a complete pragmatic assessment

The aim of the present study was to examine the communicative abilities of traumatic brain injury patients (TBI). We wish to provide a complete assessment of their communicative ability/disability using a new experimental protocol, the Assessment Battery of Communication, (ABaCo) comprising five scales—linguistic, extralinguistic, paralinguistic, context and conversational—which investigate all the main pragmatic elements involved in a communicative exchange. The ABaCo was administered to 21 TBI subjects and to a control group. The results showed that performance by TBI patients was worse than that of controls on all scales; moreover they showed a trend of increasing difficulty in understanding and producing different pragmatic phenomena, i.e., standard communication acts, deceits and ironies, whether such phenomena are expressed through the linguistic or extralinguistic modality.