Group Cancellation and Resolution

We establish a connection between the geometric methods developed in the combinatorial theory of small cancellation and the propositional resolution calculus. We define a precise correspondence between resolution proofs in logic and diagrams in small cancellation theory, and as a consequence, we derive that a resolution proof is a 2-dimensional process. The isoperimetric function defined on diagrams corresponds to the length of resolution proofs.     

Productivity is not enough: A comparison of interactive and nominal brainstorming groups on idea generation and selection

The conclusion that nominal brainstorming groups outperform interactive brainstorming groups has been exclusively based on studies of idea generation. This study tested whether the productivity advantage of nominal groups would also result in better idea selection. Nominal and interactive groups performed a task that involved idea generation and selection. Idea generation and selection were strictly separated for half the groups, but were combined for the other half. Nominal groups generated more ideas than interactive groups, and the ideas generated by nominal groups were more original and less feasible than the ideas generated by interactive groups. However, there were no differences among conditions in quality of the selected ideas. Further, idea selection was not significantly better than chance. This suggests that high productivity in brainstorming is not sufficient to lead to better solutions.     

Prepackaged Tour Versus Personal Journey: The Meaning of Informed Consent in the Context of the Teacher-study Group

This article discusses the specific ethical dilemma of obtaining informed consent and ensuring confidentiality and participant well-being while conducting a qualitative research study with novice ESL teachers in a Teacher Study Group. The discussion outlines their process of resolution of the ambiguities inherent in the research process – in essence the researchers’ personal journey of discovery. The article concludes with the broader implications for making the research process more transparent for other academic researchers working in the field of language-teacher cognition.     

The Cultural Adaptation of the Youth Quality of Life Instrument-Research Version for Latino Children and Adolescents

We reviewed the Spanish translation of the Youth Quality of Life Instrument-Research Version (YQOL-R) and culturally adapted the measure with Puerto Rican and Mexican American children and adolescents. The YQOL-R is a self-reported measure that includes four domains: Sense of Self, Social Relationships, Environment, and General Quality of Life. A total of 10 focus groups were conducted with children aged 9 to 11, adolescents aged 12 to 17, their parents, and mental health providers. Five focus groups were conducted in San Diego, California and five in San Juan, Puerto Rico. Eligible participants were recruited from children’s outpatient psychiatry clinics. We followed an iterative and recursive process in reviewing changes and modifications to the instrument using a bilingual committee and a Multi National Bilingual Committee. Greater semantic, content, and technical equivalence of the Spanish and English versions for the YQOL-R was achieved for the two largest U.S. Latino subgroups: Mexican Americans and Puerto Ricans. The cultural adaptation process revealed several important issues regarding the measurement of quality of life in different age groups. Additional items for school, relationships (both family and friends) and spare time suggested the need for a future children’s version of the instrument. For the adolescents, additional items were suggested in the areas of sexuality, intergenerational conflict and acculturative stress.     

青少年民族认同的发展特点及影响因素

民族认同是一个终生动态发展的过程。青少年的民族认同影响到民族文化的传承和发展,而且民族认同和文化适应、心理健康、人格发展、亲社会行为等紧密相关。本研究选取1328名11～20岁的青少年为被试,探求青少年民族认同（包括对本民族认同和中华民族认同）在不同年龄阶段的特点,发现20岁是青少年认同的关键时期,母亲的受教育程度等对民族认同有显著影响作用。     

When failing feels good—Relative prototypicality for a high-status group can counteract ego-threat after individual failure

Two studies demonstrate that members of high-status groups (i.e., men and students of business administration) but not members of low-status groups (i.e., women and education students) react with an increase in state self-esteem after an alleged poor performance on a fictitious intelligence test. This Failure-as-an-Asset (FA) effect is only observed when the high-status ingroup (i.e., men) is outperformed by a low-status outgroup (i.e., women). In this case, a poor performance will lead to a strong identification with the ingroup due to high ingroup prototypicality. As predicted, the effects of experiencing success or failure on self-esteem were mediated by identification with the ingroup.     

Identifying and changing the normative beliefs about aggression which lead young Muslim adults to join extremist anti‐Semitic groups in Pakistan

Two studies investigated the role of beliefs about the acceptability of aggression (“normative beliefs”) against Jews in determining who would join an extremist group. In Study 1, students in a university in Pakistan (N=144) completed self‐report attitude measures, and were subsequently approached by a confederate who asked whether they wanted to join an extremist anti‐Semitic organization. Normative beliefs about aggression against Jews were very strong predictors of whether participants agreed to join. In Study 2, participants (N=92) were experimentally assigned to either a brief educational intervention, designed to improve inter‐group relations, or to a control group. They also filled in self‐report attitude measures pre and post intervention. Participants in the intervention group were much less likely to agree to join the extremist group, and this effect of the intervention on joining was mediated by changes in normative beliefs about aggression against Jews. The results have implications for theories of inter‐group aggression and interventions to prevent people from being recruited into extremist groups. Aggr. Behav. 35:514–519, 2009. © 2009 Wiley‐Liss, Inc.     

Toward an intersectional understanding of violence and resilience: An exploratory study of young Southeast Asian men in Alameda and Contra Costa County, California

There is a nascent, but growing, literature on Southeast Asian youth violence that focuses on the role of acculturation, portraying violence as a problem of maladaptation. However, scholars overlook the ways in which violence holds meaning for the youth who experience it and how violence may be related to racial and gender identity formation. We conducted a qualitative study with young Southeast Asian men to elicit the role violence plays in their understanding of what it means for them to be Southeast Asian and male. We conducted focus groups and semi-structured individual interviews with an ethnically diverse group of 21 young Southeast Asian men 13–17 years of age from Alameda and Contra Costa Counties, California. Data were analyzed using the extended case method approach. Our findings illustrate that violence and engagement with community-based organizations are situational tools that these young Southeast Asian men use to navigate their social contexts in an attempt to be resilient in ecological contexts marked by alienation and discrimination, as well as to construct accepted and successful racial and gender identities. Furthermore, we found that their actions were guided by gendered codes of conduct, such as a “code of the street.”     

The Lattice of Subvarieties of the Variety Defined by Externally Compatible Identities of Abelian Groups of Exponent <Emphasis Type="Italic">n</Emphasis>

The lattices of varieties were studied in many works (see [4], [5], [11], [24], [31]). In this paper we describe the lattice of all subvarieties of the variety defined by so called externally compatible identities of Abelian groups and the identity x ⁿ ≈ y ⁿ . The notation in this paper is the same as in [2]. Presented by W. Dziobiak     

Racial/Ethnic Differences in Internalizing and Externalizing Symptoms in Adolescents

The prevalence of most adult psychiatric disorders varies across racial/ethnic groups and has important implications for prevention and intervention efforts. Research on racial/ethnic differences in the prevalence of internalizing and externalizing symptoms and disorders in adolescents has been less consistent or generally lacking. The current study examined the prevalence of these symptom groups in a large sample of sixth, seventh, and eighth graders in which the three major racial/ethnic groups in the U.S. (White, Black, and Hispanic/Latino) were well-represented. Hispanic females reported experiencing higher levels of depression, anxiety, and reputational aggression than other groups. Black males reported the highest levels of overtly aggressive behavior and also reported higher levels of physiologic anxiety and disordered eating than males from other racial/ethnic groups. Hispanic females also exhibited higher levels of comorbidity than other racial/ethnic groups.