The Appropriateness of Using Laboratories and Student Participants in Gambling Research

Increased recognition of the risks associated with gambling has resulted in a greater focus on empirical research to increase the understanding of gambling and design appropriate response strategies. Laboratory studies are a popular mode of research due to their relative ease and lower costs compared to field research; however such studies may be limited in the extent to which results can be generalized to real gambling scenarios. The current research investigated the validity of a laboratory research study using 127 university students (male = 97, mean age = 20.4) investigating the impact of harm-minimisation measures by replicating the study in gambling venues with 124 club patrons (male = 89, mean age = 44.1). The main results and effects of both studies were in the same direction, but fewer significant results were found in the venue study. Venue participants provided much less information in response to survey questions than student participants and were less likely to return follow-up questionnaires. It was concluded that both laboratory and field studies provide valuable contributions to the field, but caution should be taken in interpreting results, and where possible both methodologies should be used to verify conclusions.     

Multicriterion linear programming problems : (Analytical survey)

An analytical survey of man-machine interactive procedures is presented. A decision maker's capabilities to carry out some information processing operations are discussed. A list of a decision maker's elementary operations used in different interactive procedures is given and their estimations from a psychological point of view are suggested. Three main criteria for estimation of man-machine procedures are proposed: reliability of information elicitation from decision maker, insignificant sensitivity to random decision maker's errors, and good speed of convergence to solution. Some procedures are evaluated in terms of these criteria.     

Promoting Empowerment Among LGBTQ Youth: A Social Justice Youth Development Approach

Lesbian, gay, bisexual, transgender and queer-identified (LGBTQ) youth are a population with a unique set of service needs. Existing research on effective service methods with LGBTQ youth is limited. Youth empowerment holds potential as an approach that can impact well-being among youth who face discrimination. The current study explores the relationship between the social justice youth development framework (Ginwright and James, New Directions Youth Dev 96:27–46, 2002) and youth empowerment in a sample of LGBTQ youth. Multiple regression analysis of data collected through a community-based youth program identified critical consciousness and community engagement as significant predictors of empowerment. Findings suggest that programs that promote these factors among LGBTQ youth using the social justice youth development framework may enhance empowerment thereby increasing other aspects of well-being.     

Generalized value at risk forecasting

Abstract

In this paper, using estimating function approach, a new optimal volatility estimator is introduced and based on the recursive form of the estimator a data-driven generalized EWMA model for value at risk (VaR) forecast is proposed. An appropriate data-driven model for volatility is identified by the relationship between absolute deviation and standard deviation for symmetric distributions with finite variance. It is shown that the asymptotic variance of the proposed volatility estimator is smaller than that of conventional estimators and is more appropriate for financial data with larger kurtosis. For IBM, Microsoft, Apple stocks and SP 500 index the proposed method is used to identify the model, estimate the volatility, and obtain minimum mean square error(MMSE) forecasts of VaR.     

Feminism and the quality of life

A measure of feminism is introduced, and a case is made for the acceptability of its levels of reliability, criterion-related, content, construct and discriminant-validity. Feminism is shown to be related to such features of the quality of life as happiness and being a good person. Survey results are reported from a sample of 431 members of the Canadian Research Institute for the Advancement of Women and 413 undergraduate women from the University of Guelph.     

Optimism in thirty countries over a decade

Survey research results from Gallup Polls in 30 countries over the past decade suggest that most people are not optimists about their immediate future.