Pairwise comparisons of trimmed means for two or more groups

The paper takes up the problem of performing all pairwise comparisons amongJ independent groups based on 20% trimmed means. Currently, a method that stands out is the percentile-t bootstrap method where the bootstrap is used to estimate the quantiles of a Studentized maximum modulus distribution when all pairs of population trimmed means are equal. However, a concern is that in simulations, the actual probability of one or more Type I errors can drop well below the nominal level when sample sizes are small. A practical issue is whether a method can be found that corrects this problem while maintaining the positive features of the percentile-t bootstrap. Three new methods are considered here, one of which achieves the desired goal. Another method, which takes advantage of theoretical results by Singh (1998), performs almost as well but is not recommended when the smallest sample size drops below 15. In some situations, however, it gives substantially shorter confidence intervals.     

Understanding Dignity in the Lives of Homeless Persons

The current investigation is a planned, systematic study of dignity as critical to understanding the experience of homelessness and improving services and programs for the homeless. Specifically, we conducted a thematic content analysis of interviews with 24 homeless men and women to identify their perception of specific environmental events that validate and invalidate dignity. In addition, we explored the impact that these events have on homeless persons. Eight types of events were identified that sustain dignity such as being cared for by staff and having resources available to meet basic needs. Eight types of events were found that undermine dignity, such as being yelled at or insulted by staff persons and having staff use rules in an excessive and arbitrary way. Two outcomes followed the sustenance of dignity including increased self-worth and motivation to exit homelessness. Three outcomes followed the undermining of dignity including anger, depression, and feelings of worthlessness. The results suggest that dignity is an important variable to consider in understanding the experience of homelessness. Policies and programs that support validating the dignity of homeless persons are encouraged.     

Signal Detection Models with Random Participant and Item Effects

The theory of signal detection is convenient for measuring mnemonic ability in recognition memory paradigms. In these paradigms, randomly selected participants are asked to study randomly selected items. In practice, researchers aggregate data across items or participants or both. The signal detection model is nonlinear; consequently, analysis with aggregated data is not consistent. In fact, mnemonic ability is underestimated, even in the large-sample limit. We present two hierarchical Bayesian models that simultaneously account for participant and item variability. We show how these models provide for accurate estimation of participants’ mnemonic ability as well as the memorability of items. The model is benchmarked with a simulation study and applied to a novel data set. This research is supported by NSF grants SES-0095919 and SES-0351523, NIH grant R01-MH071418, a University of Missouri Research Leave grant and fellowships from the Spanish Ministry of Education and the University of Leuven, Belgium.     

欺负行为测量:问题及解决

近20年来,各国心理学家就欺负问题做了大量的研究工作。本文主要分析了欺负行为研究中对欺负行为的评价和测量上存在的局限以及相应的改进策略。目前欺负行为评价中的问题主要有：对欺负定义的理解和界定不一致;对欺负的评价角度不一致;测量工具在适用年龄上缺乏连续性;测量方法存在单一性;测量时间取样不明确等。针对上述问题,本研究提出了操作性定义的界定基础、研究工具的开发方向、测量方法的选取技巧和数据分组的原则等来提高对校园欺负行为研究的科学性。     

The Prevalence and Prevention of Crosstalk: A Multi-Institutional Study

It is a common problem in psychology subject pools for past study participants to inform future participants of key experimental details (also known as crosstalk). Previous research (Edlund, Sagarin, Skowronski, Johnson, & Kutter, 2009) demonstrated that a combined classroom and laboratory treatment could significantly reduce crosstalk. The present investigation tested a laboratory-only treatment for the prevention of crosstalk at five universities, along with institutional-level moderators of crosstalk. Results indicated the presence of crosstalk at all universities and that the laboratory-based treatment was effective in reducing crosstalk. Importantly, crosstalk rates were higher (but successfully neutralized) in research pools with higher research credit requirements. Therefore, this research provides valuable guidance regarding crosstalk prevalence and its minimization by researchers.     

Secular or nonreligious? Investigating and interpreting generic ‘not religious’ categories and populations

In research dealing with religious affiliation, generic nonreligious categories – ‘no religion’, ‘not religious’, ‘nonreligious’, ‘nones’ – are frequently used to measure secularity and secularisation processes. Analysis of these categories is, however, problematic because they have not received dedicated methodological attention. Using qualitative research conducted in the UK, this article investigates what nonreligious categories measure and, specifically, whether they indicate non-identification or disaffiliation as assumed or an alternative form of cultural affiliation. Findings suggest that generic nonreligious categories are sometimes used to express substantive positions and public identities, and that these are diverse. These findings flatten distinctions between religious and nonreligious categories as ‘positive’ and ‘negative’ respectively and indicate problems therefore in using nonreligious identification to measure secularity and secularisation. They suggest nonreligious identification is, however, a useful indicator of the advance of nonreligious cultures and the ‘nonreligionisation’ of societies.     

Towards a Pan‐cultural Personality Structure: Input from 11 Psycholexical Studies

The purpose of the present study is to find the common kernel of different trait taxonomic studies and find out how the individual structures relate to this common kernel. Trait terms from 11 psycholexically based taxonomies were all translated into English. On the basis of the commonalities in English, the 11 matrices were merged into a joint matrix with 7104 subjects and 1993 trait terms. Untranslatable terms produced large areas with missing data. To arrive at the kernel structure of the joint matrix, a simultaneous component analysis was applied. In addition, the kernel structures were compared with the individual taxonomy trait structures, obtained via principal component analysis. The findings provide evidence of a structure consisting of three components to stand out as the core of the taxonomies included in this study; those components were named dynamism, affiliation, and order. Moreover, the relations between these three kernel components and those of a six‐component solution (completing the six‐factor model) are provided. Copyright © 2014 European Association of Personality Psychology     

Psychotherapy across languages: beliefs,attitudes and practices of monolingual and multilingual therapists with their multilingual patients

Aims: The present study investigates beliefs, attitudes and practices of 101 monolingual and multilingual therapists in their interactions with multilingual patients. Method: A mixed‐method approach was adopted using an online questionnaire with closed questions, and informed questions in interviews with one monolingual and two multilingual therapists. Results: A principal component analysis yielded a four‐factor solution accounting for 41% of the variance. The first dimension, which explained 17% of variance, reflects therapists' attunement towards their bilingual patients (attunement versus collusion). Further analysis showed that the 18 monolingual therapists differed significantly from their 83 bi‐ or multilingual peers on this dimension. The follow‐up interviews confirmed this result. Discussion: Recommendations based on these findings are made for psychotherapy training and supervision.     

Associations between attention,affect and cardiac activity in a single yoga session for female cancer survivors: An enactive neurophenomenology-based approach

Yoga practice is reported to lead to improvements in quality of life, psychological functioning, and symptom indices in cancer survivors. Importantly, meditative states experienced within yoga practice are correlated to neurophysiological systems that moderate both focus of attention and affective valence. The current study used a mixed methods approach based in neurophenomenology to investigate associations between attention, affect, and cardiac activity during a single yoga session for female cancer survivors. Yoga practice was associated with a linear increase in associative attention and positive affective valence, while shifts in cardiac activity were related to the intensity of each yoga sequence. Changes in attention and affect were predicted by concurrently assessed cardiac activity. Awareness of breathing, physical movement, and increased relaxation were reported by participants as potential mechanisms for yoga’s salutary effects. While yoga practice shares commonalities with exercise and relaxation training, yoga may serve primarily as a promising meditative attention-affect regulation training methodology.     

体温计知识及诊断技术在近代中国的传播与应用——

19世纪末,体温计作为西方医学发展出的新型医疗器具被广泛应用于临床。体温计知识及诊断技术也是西方医学在华传播的重要内容之一,梳理并探讨了其在近代中国的传播途径和应用过程。中医界对于体温计及诊断技术则表现出既接纳又排斥的复杂态度。受中西汇通思想的影响,中医医家将“衷中参西”观念贯彻于诊疗模式,以体温计可以精确测知体温变化之长协助中医临床的辨证。虽然对于“传统”中医四诊诊断模式而言,体温计的应用不免会破坏其传统性,但也在不断受到西医新的诊疗器具与诊断技术的挑战中寻求传承与发展。