Dilemmas of Practice: Challenges to Program Quality Encountered by Youth Program Leaders

To create and sustain high quality youth development programs it is important to understand the challenging situations and dilemmas that emerge in program leaders’ daily work with youth. In this research the experiences of leaders in 12 programs were followed over a 2–9 month period, which led to the identification of 250 dilemma situations. Qualitative analyses identified 5 categories and 12 subcategories of dilemmas that reflected distinct types of considerations (e.g., youth’s personalities, relationships with the community). The analyses also found that the experienced leaders in the study typically responded to these dilemmas in ways that were youth-centered and that balanced multiple considerations. It is argued that researchers need to go beyond identifying features of high quality programs, and more fully examine how effective leaders create and sustain high quality in response to the challenging situations of practice.     

“Seeing is believing”: The effects of facial expressions of emotion and verbal communication in social dilemmas

In social dilemmas, verbal communication of one's intentions is an important factor in increasing cooperation. In addition to verbal communication of one's intentions, also the communication of emotions of anger and happiness can influence cooperative behavior. In the present paper, we argue that facial expressions of emotion moderate verbal communication in social dilemmas. More specifically, three experiments showed that if the other person displayed happiness he or she was perceived as honest, trustworthy, and reliable, and cooperation was increased when verbal communication was cooperative rather than self‐interested. However, if the other person displayed anger, verbal communication did not influence people's decision behavior. Results also showed interactive effects on people's perceptions of trustworthiness, which partially mediated decision behavior. These findings suggest that emotion displays have an important function in organizational settings because they are able to influence social interactions and cooperative behavior. Copyright © 2009 John Wiley & Sons, Ltd.     

口腔颌面部鳞状细胞癌的综合序列治疗

口腔颌面部鳞状细胞癌(鳞癌)在头颈部肿瘤的发病和治疗中占有重要地位,综合序列治疗的概念和理论逐渐成为口腔颌面部鳞癌治疗的指导原则。本文对口腔颌面部鳞癌综合序列治疗所包含的手术治疗、放射治疗、化学治疗及生物治疗从临床治疗策略上进行分析、讨论,以期促进口腔颌面部鳞癌综合序列治疗原则在临床获得更好地应用。     

Remarks on the Absentminded Driver

Piccione and Rubinstein (1997) present and analyse the sequential decision problem of an “absentminded driver”. The driver's absentmindedness (imperfect recall) leads him to time-inconsistent strategy evaluations. His original evaluation gets replaced by a new one under impact of the information that the circumstances have changed, notwithstanding the fact that this change in circumstances has been expected by him all along. The time inconsistency in strategy evaluation suggests that such an agent might have reason to renege on his adopted strategy. As we shall see, however, this danger is only apparent. There is no serious problem of dynamic inconsistency in this case. My diagnosis of the case under consideration is in many respects similar to the one provided by Aumann, Hart and Perry (1997), but the analysis leading to this diagnosis is not quite the same. This revised version was published online in August 2006 with corrections to the Cover Date.     

The effects of interpersonal relationship and character gender on adolescents' resolutions of moral dilemmas

An experimental study using two forms of the Defining Issues Test [Rest, J. R. (1979). Revised manual for the Defining Issues Test. Minneapolis: Moral Research Project, University of Minnesota.], modified to present either a high degree of relationship among characters or a low degree of relationship among characters, was conducted with 114 college students. The gender of the characters in the dilemmas was also systematically varied. Both male and female students evidenced principled (Stages 5 and 6) reasoning more often when dilemma characters were male than when story characters were female. Participant gender and relationship condition were significant factors in the frequency of Stage 4 reasoning. Male students in the low-relationship condition evidenced Stage 4 (“Law and order”) reasoning most often when story characters were male, while male students, like female students in all conditions, showed Stage 4 reasoning more often when female characters were presented in the high-relationship condition. The degree to which moral decisions were supportive of an affected character revealed more support when story characters were female than when they were male. Results indicate that even in hypothetical situations, moral judgments vary with the gender of the person being judged and to some degree with the relationships among those involved in the dilemma. These findings are consistent with a view that multiple, equally valid approaches to moral judgment might exist and affect the development of male and female students differently.     

Empirical Guidance for Time-Window Sequential Analysis of Single Cases

Time-window sequential analyses test whether a target behavior occurs within a temporal window (e.g., within 2 seconds) after an antecedent behavior more than is expected by chance. This type of question is common when we need to know how one person or event may immediately affect another event or person in the natural environment. Theoretically, the significance of sequential associations from time-window analysis can be tested on the single subject level (Bakeman & Quera, 1995). The present Monte Carlo study was conducted to test the Type I error rates and the difference in sequential associations derived from four methods of time-window sequential analysis. The four methods vary according to whether they analyze the duration of antecedent and target behaviors. The results indicate that time-window sequential analysis method is generally valid. The results were most accurate when antecedent duration and target onset was analyzed. Although analyzing duration of the antecedent did affect the results, the effect size for the difference in results due to presence or absence of measuring duration of the antecedent was extremely small. Time-window analysis results appear unaffected by the decision to analyze the duration of the target event.     

Trust and trustworthiness in a sequential bargaining game

We use a two‐person extensive form bargaining game to explore individuals' trusting and reciprocal behavior and how those relate to their scores on a trust survey. In keeping with prior research, we find that the ‘self‐interested’ outcome is rejected by a majority of individuals. People who score high on the trust survey are both trusting and are also trustworthy, in that they reciprocate others' trust. But people with low‐trust scores often exhibit trust but are not trustworthy. These ‘inconsistent trusters’ seem to be interested in exploiting the trust and trustworthiness of others in increasing their own payoff. Copyright © 2003 John Wiley & Sons, Ltd.     

An empirical Q-matrix validation method for the sequential generalized DINA model

As a core component of most cognitive diagnosis models, the Q-matrix, or item and attribute association matrix, is typically developed by domain experts, and tends to be subjective. It is critical to validate the Q-matrix empirically because a misspecified Q-matrix could result in erroneous attribute estimation. Most existing Q-matrix validation procedures are developed for dichotomous responses. However, in this paper, we propose a method to empirically detect and correct the misspecifications in the Q-matrix for graded response data based on the sequential generalized deterministic inputs, noisy ‘and’ gate (G-DINA) model. The proposed Q-matrix validation procedure is implemented in a stepwise manner based on the Wald test and an effect size measure. The feasibility of the proposed method is examined using simulation studies. Also, a set of data from the Trends in International Mathematics and Science Study (TIMSS) 2011 mathematics assessment is analysed for illustration.     

Black magic and respecting persons—Some perplexities

Black magic (henceforth BM) is acting in an attempt to harm human beings through supernatural means. Examples include the employment of spells, the use of special curses, the burning of objects related to the purported victim, and the use of pins with voodoo dolls. For the sake of simplicity, we shall focus on attempts to kill through BM. The moral attitude towards BM has not been, as far as we know, significantly discussed in contemporary analytic philosophy. Yet the topic brings up interesting questions and poses challenges, occasionally even reaching the level of paradoxes. Ideas of respecting persons, in particular, will be seen to be challenged by this form of magic. The notion of respecting persons will be treated here broadly and pluralistically. Indeed part of the interest in the discussion will be the unfolding of the diverse ways in which this term should be understood, and the contrasts between its various uses. Often, as we shall see, respect for persons and disrespect for them, in different senses, will co-exist, and the dilemma will be one where avoiding some forms of disrespect will involve us in disrespect in other senses.