Characterizing best–worst voting systems in the scoring context

An increasing body of theoretical and empirical work on discrete choice considers a choice design in which a person is asked to select both the best and the worst alternative in an available set of alternatives, in contrast to more traditional tasks, such as where the person is asked to: select the best alternative; select the worst alternative; rank the alternatives. Here we consider voting systems motivated by such “best–worst” choice; characterize a class of “best–worst” voting systems in terms of a set of axioms in the context of scoring rules; and discuss briefly possible extensions to approval–disapproval systems.     

A Time-Lag Analysis of the Relationships Among PISA Scores,Scientific Research Publication,and Economic Performance

Due to the poor performance of US students in international math and science tests, many authors worry that the US lead in science is in jeopardy. A recent study by Chen and Luoh (Soc Indic Res 96: 133–143, 2010) challenged this pessimistic view by delinking test performance and labor force quality. It was found that measures such as researchers per capita or scientific journal articles per capita can better account for economic performance. Because it takes time for education and R&;D to yield returns, this project replicated the preceding study using a time-lag structure. Although the results partly concur with previous findings, it is important to point out that GDP might depend on multiple variables acting together. Instead of solely focusing on reforming STEM education as partly measured by international test scores, improving the R&;D infrastructure and openness in trade could also be crucial to the future of the economy.     

A reweighting approach to robust clustering

An iteratively reweighted approach for robust clustering is presented in this work. The method is initialized with a very robust clustering partition based on an high trimming level. The initial partition is then refined to reduce the number of wrongly discarded observations and substantially increase efficiency. Simulation studies and real data examples indicate that the final clustering solution has both good properties in terms of robustness and efficiency and naturally adapts to the true underlying contamination level.     

Dopamine and risk choices in different domains: Findings among serious tournament bridge players

We explore how risk-taking in the card game contract bridge, and in a financial gamble, correlate with variation in the dopamine receptor D4 gene (DRD4) among serious tournament bridge players. In bridge risk-taking, we find significant interactions between genetic predisposition and skill. Among men with the 7-repeat allele of DRD4, namely 7R + men, those with more bridge skill take more good risks and fewer bad risks, while the opposite is found for less-expert 7R + men. Conversely, skill does not predict risk-taking among men without the 7R + allele. Consistent with some prior studies, we also find that 7R + men take more risk in the financial gamble. We find no relationship between 7R + and either risk measure among our female subjects. Our results suggest that the dopamine system plays an important role in individual differences in risk-taking among men, and is the first to distinguish between advantageous and disadvantageous risk-taking.     

Analysis of adaptive directional stratification for the controlled estimation of rare event probabilities

In the context of structural reliability, a small probability to be assessed, a high computational time model and a relatively large input dimension are typical constraints which brought together lead to an interesting challenge. Indeed, in this framework many existing stochastic methods fail in estimating the failure probability with robustness.     

Jack Michael’s Motivation

Among many of Jack Michael''s contributions to the field of behavior analysis is his behavioral account of motivation. This paper focuses on the concept of motivating operation (MO) by outlining its development from Skinner''s (1938) notion of drive. Conceptually, Michael''s term helped us change our focus on how to study motivation by shifting its origins from the organism to the environment. Michael''s account also served to stimulate applied research and to better understand behavioral function in clinical practice.     

Epilogue of empire: East Timor and the Portuguese postcolonial catharsis

The demonstrations of solidarity with East Timor that occurred in Lisbon in September 1999 were the first major political demonstrations since the fall of the dictatorship in 1974. Solidarity with East Timor demonstrated the importance to the Portuguese of emotional and cultural ties to people whom they saw as sharing their language and Catholic religion. These commonalities have a clear colonial history and are now being reconstructed around the idea of Lusophony, which is taken to be the core of a Portuguese postcolonial identity. East Timor, a Portuguese colony that was occupied by Indonesia after the Portuguese revolution of 1974, used diacritical signs such as Portuguese and Catholicism in its nationalist struggle against Indonesia. These signs are the cultural patrimony of a local creole elite and are exaggerated in Portuguese perceptions of East Timor. The colonial and postcolonial ironies of this case of mutual constitution of identity are analyzed.     

Permission-Giving and Marital Infidelity

ABSTRACT

The research used qualitative methods to begin exploring how individual’s decision-making enhances their risk of having a marital affair. Particularly how does a woman give herself permission to move forward with having an affair? Semistructured interviews were recorded with women who had a marital affair and then transcribed in preparation for coding. The transcendental phenomenological model was used to analyze the data collected. Sensitizing concepts were used as a base in identifying how participants were able to limit their cognitive dissonance as a way of giving themselves permission to have an affair. The results found four methods of limiting cognitive dissonance: not being worthy of loyalty, rationalization, guilt-free infidelity, and compartmentalization. Clinical implications are discussed.     

How Cognitive Interviewing can Provide Validity Evidence of the Response Processes to Scale Items

The current theory about validity reflected in the Standards for Educational and Psychological Testing (AERA et al. in Standards for educational and psychological testing, American Psychological Association, Washington, DC, 1999), offers no clear indications about the methods for gathering validity evidence about the response processes. Cognitive interviewing (CI) can play an important role answering the current demand about empirical and theoretical analyses of the response processes as a source of validity evidence in psychological testing. CI can provide validity evidence for investigating substantive aspects of construct validity and for contributing to the explanations for item and test scores (Zumbo in Handbook of statistics, vol 26, Elsevier, Amsterdam, pp. 45–79, 2007; The concept of validity: revisions, new directions and applications, IAP—Information Age Publishing Inc., Charlotte, NC, pp. 65–82, 2009). The aim of the study was to illustrate the use of cognitive interviewing method for gathering validity evidence on response processes. The search for evidence about the “response process” was guided by an argument-based approach to validity (Kane in Psychological Bulletin 1992; Educational measurement, American Council on Education/Praeger, Washington, DC, pp. 17–64, 2006). 21 cognitive interviews were carried out during the cognitive testing of the APGAR psychological scale intended to measure the “family support” construct. Cognitive interviewing provided validity evidence that explains how respondents interpret and respond to the APGAR items. Respondents maintained a shared interpretation of “family concept” while answering the APGAR scale items. Nevertheless, they included in the concept of family not only family members they live with but also other family members and even friends. CI participants were also capable of classifying their answers about the family support perception following a polythomous response system. Lastly, the role of CI in the Kane’s argument-based approach and Zumbo’s contextualized view of validity will be discussed.