Improved estimators of a location vector with unknown scale parameter

The problem of estimating, under arbitrary quadratic loss, the location vector parameter θ of a p-variate distribution (p ≥ 3) with unknown covari-ance matrix ∑ = α² D (where D is a known diagonal matrix) is considered. A large class of improved shrinkage estimators is developed for this problem. This work generalizes results of Berger and Brandwein and Strawderman for the case of a known scale parameter and extends the authors’ results for the class of scale mixtures of normal distributions.     

The Role of Dyadic Coordination in Organizing Visual Attention in 5‐Month‐Old Infants

In human infants, the ability to share attention with others is facilitated by increases in attentional selectivity and focus. Differences in early attention have been associated with socio‐cognitive outcomes including language, yet the social mechanisms of attention organization in early infancy have only recently been considered. Here, we examined how social coordination between 5‐month‐old infants and caregivers relate to differences in infant attention, including looking preferences, span, and reactivity to caregivers’ social cues. Using a naturalistic play paradigm, we found that 5‐month‐olds who received a high ratio of sensitive (jointly focused) contingent responses showed strong preferences for objects with which their caregivers were manually engaged. In contrast, infants whose caregivers exhibited high ratios of redirection (attempts to shift focus) showed no preferences for caregivers’ held objects. Such differences have implications for recent models of cognitive development, which rely on early looking preferences for adults’ manually engaged objects as a pathway toward joint attention and word learning. Further, sensitivity and redirectiveness predicted infant attention even in reaction to caregiver responses that were non‐referential (neither sensitive nor redirective). In response to non‐referentials, infants of highly sensitive caregivers oriented less frequently than infants of highly redirective caregivers, who showed increased distractibility. Our results suggest that specific dyadic exchanges predict infant attention differences toward broader social cues, which may have consequences for social‐cognitive outcomes.     

Immigration in the United States and What Social Workers Should Know

This article has been retracted.     

Development of outstanding leadership: A life narrative approach

Developmental events of a sample of outstanding leaders experienced in early life were examined. Relevant sections of 120 biographies of outstanding leaders in the 20th Century were content coded using a life narrative framework. The results indicated that individuals evidencing a particular leadership type (charismatic, ideological, or pragmatic) and orientation (socialized or personalized) were linked to certain types of developmental events. Similarly, event content was found to vary between the leader styles. Specific kinds of experiences were also related to various indices of leader performance. Practical and theoretical implications of these findings are discussed.     

Group work is … powerful! This stuff changes … lives: training on group processes for facilitators of curriculum-based groups

ABSTRACT

This article describes a four-year group work training project conducted with facilitators of curriculum-based parenting groups who had not been trained in group work or group processes. A total 14 group facilitators and 144 group members from 34 groups were involved in the training and the mixed method evaluation. Participants described how the training modified their group facilitation, helping them understand that the groups themselves as well as the curricula were informative and transformative, and that group members as well as group facilitators had roles. Further, facilitators indicated that the training resulted in fundamental change in their self-perceptions from being simply purveyors of a parenting curriculum to empathic agents of change as well.     

The effects of parental involvement on academic performance of Ghanaian youth: Testing measurement and relationships using structural equation modeling

Research in developed countries suggests that parental involvement is associated with youth academic success. However, little is known about the overall impact of parental involvement on youth academic performance in developing countries. Further, it is unclear what type of parental involvement impacts the academic performance of youth from developing countries. This study examines whether parental involvement at home and school are meaningfully different constructs in a population of Ghanaian youth and their parents, and whether parental involvement predicts academic performance. Results suggest a multidimensional construct consists of home and school involvement. The effect of parental involvement on youth academic performance appears to be a function of the type of parental involvement. Home-based parental involvement is positively associated with academic performance, while school-based parental involvement is negatively associated with academic performance. Parental involvement in youth's education has important implications for academic performance. Parental involvement in education has the potential to model positive attitudes toward school as well as adaptive academic practices, thus sending the message to youth that school is important.     

Questioning universal applicability of transformational leadership: Examining employees with autism spectrum disorder

Challenging an implicit assumption of universal applicability, we propose that a subset of transformational leader behaviors may hamper organizational outcomes for a unique yet growing segment of the workforce: employees on the autism spectrum. Specifically, we tested the hypothesis that emotion-laden communication and social exchanges characterizing the inspirational motivation dimension of the theory are associated with increased feelings of anxiety which, in turn, negatively relate to work outcomes. In contrast, we proposed that other dimensions of transformational leadership, such as individualized consideration, would be associated with reduced levels of anxiety and, ultimately, improved workplace outcomes. Results generally supported the hypothesized indirect relationships for ratings of organizational commitment, but not self-reported job performance which was most strongly predicted by individualized consideration, directly. Implications for managing employees with autism spectrum disorder are discussed as well as the overall applicability of transformational leadership to this growing segment of the workforce.     

The Sacred and the Search for Significance: Religion as a Unique Process

Although many social scientists have assumed that religion can be reduced to more basic processes, there may be something unique about religion. By definition, religion has a distinctively meaningful point of reference, the sacred. Empirically, studies also suggest that religion may be a unique: form of motivation; source of value and significance; contributor to mortality and health; source of coping; and source of distress. These findings point to the need for: theory and research on the sacred; attention to the pluralization of religious beliefs and practices; evaluation of individual and social interventions that address spiritual problems and apply spiritual resources to their resolution; and collaboration between psychological and religious groups that draws on their unique identities and strengths.