On the E-optimality of blocked main effects plans in blocks of different sizes

In this article, we consider experimental situations in which m 2-level factors are to be studied using a main effects plan where n runs are to be partitioned into b blocks having both even and odd sizes. For these cases, we give some simple methods for constructing E-optimal designs.     

Series estimation of functional-coefficient partially linear regression model

This paper develops an alternative and complement estimation procedure for functional coefficient partially linear regression (FCPLR) model based on series method. We derive the convergence rates and asymptotic normality of the proposed estimator. We examine its finite sample performance and compare it with the two-step local linear estimator via a small scale Monte Carlo simulation.     

Dark Flow,Depression and Multiline Slot Machine Play

Multiline slot machines allow for a unique outcome type referred to as a loss disguised as a win (LDW). An LDW occurs when a player gains credits on a spin, but fewer credits than their original wager (e.g. 15-cent gain on a 20-cent wager). These outcomes alter the gambler’s play experience by providing frequent, albeit smaller, credit gains throughout a playing session that are in fact net losses. Despite this negative overall value, research has shown that players physiologically respond to LDWs as if they are wins, not losses. These outcomes also create a “smoother” experience for the player that seems to promote a highly absorbing, flow-like state that we have called “dark flow”. Past research has indicated that there may be a relationship between problem gambling status and dark flow, as well as between dark flow, depression, and gambling expectancies. In this study, we sought to further understand these relationships, while examining the influence of LDWs on game preference in the context of single versus multiline slots play. We used a realistic slot machine simulator equipped with a force transducer to measure how hard players pressed the spin button following different outcomes. This measure of arousal showed that LDWs were treated similarly to small wins. Participants overwhelmingly preferred the multiline game and experienced more positive affect while playing it, compared to the single-line game. Problem gambling severity index scores were related to dark flow in both games, but this relationship was stronger for the multiline game. Additionally, depression symptomatology and dark flow were strongly correlated in the multiline game, with significant relationships between depression and gambling expectancy, and gambling expectancy and dark flow ratings also emerging.     

From group analytic to systems-centered consulting: a comparison of experience

ABSTRACT

This article provides a personal account of experiences of consultation to staff working in residential child care. The paper starts with experiences of receiving consultation while working in a therapeutic community, then of providing consultation to children’s homes, firstly from a group-analytic perspective and subsequently using a systems-centred approach. The author considers the goal of consulting to staff teams who care for traumatised children and draws conclusions about the different approaches regarding which are most likely to achieve the stated goal. Functional subgrouping – the central method of systems-centred approach – is described in action.     

Adult Attachment Stability–Instability Before and After Marriage Between Intimate Partner Violence (IPV) and Non‐IPV Women Separated from Partners During Military Duty in Indonesia

The quality of attachment between intimate partners is important for women to maintain healthy relationships. Yet, the quality of attachment style and relationship can be marred and disrupted in women exposed to trauma due to intimate partner violence (IPV). Research suggests that the impact of trauma on women can be transmitted over generations due to the inability to regulate emotions, specifically in dealing with their children. The aim of this study was to explore the disruption of adult attachment patterns by comparing a group of women in Indonesia who have been affected by IPV, and a group of women who have not been affected by IPV but who have been separated from their partner during military duty. A cross‐sectional study comparing two groups: women exposed to IPV (n = 35) and women not exposed to IPV (n = 35) was carried out. The adult attachment scale before and after marriage was obtained using Experiences in Close Relationships‐Revised scales. The results revealed a significant shift of attachment style on the Avoidant dimension of the non‐IPV group separated by partner military duty and a slight change on the overall attachment of the IPV group, but relative stability on the Anxiety dimensions. The study interpreted the findings as being more supportive of the prototype perspective rather than the revisionist perspective. Family therapists may reduce the attachment Avoidant dimension as a therapeutic goal of intervention to change the insecure to a more secure working model.     

Do Chief Executives’ Traits Affect the Financial Performance of Risk‐trading Firms? Evidence from the UK Insurance Industry

We examine the effects of four key dimensions of Chief Executive Officers’ (CEOs’) traits on six financial performance metrics using panel data for 1999?2012 drawn from the UK's property?casualty insurance industry. We find that CEO insurance experience and CEO financial expertise enhance financial performance, while two other CEO traits ? power and age ? are generally not significant. Our results thus reinforce the importance of CEO insurance industry expertise and CEO financial expertise in the management and trading of risks. Our results have potential commercial and policy implications.     

Supporting young people from care to adulthood: International practice

This paper explores practice examples relating to young people's transitions from care to adulthood. It discusses examples drawn from young people's pathways to adulthood, leaving care law and policy and participation. The paper concludes with a discussion of the research evidence on promoting the resilience of young people from care to adulthood, by proposing a framework for evaluating the impact of practice. It is suggested that practice should be interrogated in respect of the contribution made to stability and continuity, educational achievement, involving young people, preparation and support into adulthood, and health and well‐being.     

Sustaining the Buyout Governance Model: Inside Secondary Management Buyout Boards

This paper examines the impact of private equity (PE) directors and their human capital on operating performance in a unique hand‐collected sample of 200 secondary management buyouts (SMBOs) during 2000–2015. It shows that PE directors’ human capital tends to play a statistically and economically important role in performance. Financial (rather than operational) experience of PE directors in acquiring PE firms tends to have a substantial impact on post‐SMBO profitability, while high‐level business education is especially important in post‐SMBO growth performance enhancement. Complementary expertise, provided by directors in buying and selling PE firms, plays an important role only in post‐SMBO growth improvements. Overall, the paper's results provide evidence that governance benefits of the buyout model tend not to be exhausted in the primary buyout stage, but the effects in the secondary buyout phase depend on the nature of PE directors’ human capital resource, notably in respect of the balance between board monitoring and advisory roles. This study therefore adds to growing evidence on how the ownership and life‐cycle nature of firms affect sustainability of boards fulfilling their roles. The results are robust to sample selection bias, different types of PE firms and different measures of human capital.     

Cross-Cultural Judgments of Spontaneous Facial Expressions of Emotion

We report data concerning cross-cultural judgments of emotion in spontaneously produced facial expressions. Americans, Japanese, British, and International Students in the US reliably attributed emotions to the expressions of Olympic judo athletes at the end of a match for a medal, and at two times during the subsequent medal ceremonies. There were some observer culture differences in absolute attribution agreement rates, but high cross-cultural agreement in differences in attribution rates across expressions (relative agreement rates). Moreover, we operationalized signal clarity and demonstrated that it was associated with agreement rates similarly in all cultures. Finally, we obtained judgments of won-lost match outcomes and medal finish, and demonstrated that the emotion judgments were associated with accuracy in judgments of outcomes. These findings demonstrated that members of different cultures reliably judge spontaneously expressed emotions, and that across observer cultures, lower absolute agreement rates are related to noise produced by non-emotional facial behaviors. Also, the findings suggested that observers of different cultures utilize the same facial cues when judging emotions, and that the signal value of facial expressions is similar across cultures.     

A Monte Carlo Markov chain algorithm for a class of mixture time series models

This article generalizes the Monte Carlo Markov Chain (MCMC) algorithm, based on the Gibbs weighted Chinese restaurant (gWCR) process algorithm, for a class of kernel mixture of time series models over the Dirichlet process. This class of models is an extension of Lo’s (Ann. Stat. 12:351–357, 1984) kernel mixture model for independent observations. The kernel represents a known distribution of time series conditional on past time series and both present and past latent variables. The latent variables are independent samples from a Dirichlet process, which is a random discrete (almost surely) distribution. This class of models includes an infinite mixture of autoregressive processes and an infinite mixture of generalized autoregressive conditional heteroskedasticity (GARCH) processes.