Characterization of discrete populations through conditional expectations of order statistics

In this paper we give some properties of the expected values of any order statistic when one of its adjacent order statistics is known (order mean function) from a sequence of sizen of independent and identically distributed random variables with discrete distribution. Furthermore, we obtain the explicit expressions of the distribution from these order mean functions, and finally, we show the necessary and sufficient conditions for any real function to be an order mean function. We also add some examples of characterization of discrete distributions from the order mean functions. Partially supported by Consejería de Cultura y Educación (C.A.R.M.), under Grant PIB 95/90.     

Focused estimation for noisy and small data sets: a Bayesian minimum expected loss estimator approach

Central to many inferential situations is the estimation of rational functions of parameters. The mainstream in statistics and econometrics estimates these quantities based on the plug‐in approach without consideration of the main objective of the inferential situation. We propose the Bayesian Minimum Expected Loss (MELO) approach focusing explicitly on the function of interest, and calculating its frequentist variability. Asymptotic properties of the MELO estimator are similar to the plug‐in approach. Nevertheless, simulation exercises show that our proposal is better in situations characterised by small sample sizes and/or noisy data sets. In addition, we observe in the applications that our approach gives lower standard errors than frequently used alternatives when data sets are not very informative.     

Efficacy of Cyberbullying Prevention on Somatic Symptoms—Randomized Controlled Trial Applying a Reasoned Action Approach

The theory of reasoned action (ToRA) has been proposed as a framework for cyberbullying prevention design, targeting attitudes and norms. In this study effects of a long (10 weekly sessions) and a short (one day, four sessions) cyberbullying prevention program based on the ToRA were compared with a control group over 9 months. Longitudinal data from 722 students (mean age = 13.36) on cyberbullying, somatic symptoms, attitudes, and norms were analyzed within a structural equation model. Participation in the long intervention group significantly reduced cyberbullying (d = ?0.584) and somatic symptoms (d = ?0.316). No between‐group differences emerged for attitudes and norms. Developmental trajectories and associations were found to be as suggested by ToRA in both cross‐sectional and change‐score analyses.     

We did it together: a participatory action research study on poverty and disability

This article presents the perspective of both non-disabled and developmentally disabled people working together in a research project on poverty and disability. Our study used a participatory action research approach that challenges the norm of exclusion in the research process. Control of the research agenda has been inclusive and shared to varying degrees in accordance with the needs and desires of the members of an advisory committee of developmentally disabled people living with low income. We reflect on our process of working together according to four principles of participatory action research with disabled people. We discuss our successes and challenges enacting these principles in the hopes that future researchers can build upon our experience to be more inclusive of developmentally disabled people in their work.     

‘I Know It Sounds Nasty and Stereotyped’: Searching for the Competent Domestic Worker

The recent upsurge of commercial companies in the market of domestic services has drawn attention in various countries. However, little is known about the operation of these companies and the extent to which their endeavours to industrialize paid domestic work reproduce or break away from historical patterns of gender inequality. In this article, the theoretical debate is informed by empirical data collected in the city area of Lisbon, in Portugal. In particular, open‐ended interviews with the managers of 15 companies provide a privileged view over the practices of recruitment and selection. Multiple sources of segmentation are associated with gendered understandings of class and ethnicity. Far from a paradigm in which stimuli toward industrialization and professionalization would overthrow the traditional centrality of trust and personal bonds in domestic service relationships, managers seek to gain a competitive advantage over rival companies and the informal economy precisely by mastering the trade of trust and personal bonds.     

The Decent Work Questionnaire: Development and validation in two samples of knowledge workers

This research develops a Decent Work Questionnaire (DWQ) to measure workers’ perceptions of decent work. Current measurements of decent work are almost completely lacking at the individual worker level of analysis, and this study contributes to filling the gap. The authors designed their DWQ based on the substantive elements used by the ILO in its Decent Work Agenda, with the final 31‐item version of the DWQ yielding seven factors related to decent work. Showing good reliability coefficient values and good convergent and discriminant validity, this DWQ could open up new avenues for empirical studies on the concept of decent work.     

Service vs. manufacturing: how to address more effectively eco-innovation public policies by disentangling the different characteristics of industries

Eco-innovation is actually a fashionable topic, and several researchers are working on understanding the defining characteristics of firms that consider the environment as a priority when innovating. To date most of these studies have been carried out on manufacturing industries. This article investigates the similarities and differences among service and manufacturing firms. An empirical analysis of a sample of 5509 Spanish companies shows that the variables affecting the eco-innovative orientation of firms are quite similar. Results reveal that manufacturing firms have higher orientation toward the environment than service firms. Furthermore, highly polarized positions in environmental aspects can be found. Despite the limitations of the study, conclusions may help public policy to encourage environmental proactivity in service industry and innovation.     

Morphosyntactic development and educational style of parents in neglected children

This research analyses the morpho-syntactical competence of children in care and the educational style of their parents. The studies from the literature give no specific data concerning how the morphological and syntactic components are affected in children suffering from neglect. These studies point to important deficiencies in language development, but do not specify what such difficulties actually are. This research is carried out within the framework of the residential care children's homes in the region of Extremadura (Spain). The morpho-syntactic competence of the children and the parental educational style of a total of 74 children in residential care are analysed. The subjects are 41 males and 33 females, between 6 and 18 years of age. We apply the ‘Objective Language Criteria Test’ (BLOCScreening) to evaluate their linguistic development and the ‘Autoevaluative Multifactorial Child Adaptation Test’ (TAMAI) to determine educational style. The presence of difficulties in morphosyntaxis is evident. The children with a low dominion of morphology and syntax perceive a more punitive style in the parents. The difficulties in morphosyntax are manifested both expressive and receptive. Use short sentences to frequent omission of morphological markers. Comprehension problems are lower than those of expression, but it shows a erroneous understanding of some grammatical structures, and grammatical errors in spontaneous speech. Use fewer morphologically complex words in their narratives. Have difficulty in organising the content of the speech and the use of cohesive devices (using the precision and accuracy of the conjunctions used in compound sentences). We must stress the need to carry out early prevention and intervention programmes in order to promote an increase in both the quantity and the quality of language stimulation. From there, the need to set up intervention programmes that influence the linguistic competence of children who have suffered abuse.     

Violent behaviour,victimization, self-esteem and physical activity of Spanish adolescents according to place of residence: a structural equation model / Conducta violenta,victimización,autoestima y actividad física de adolescentes españoles en función del lugar de residencia: un modelo de ecuaciones estructurales

This study aims to establish and verify an explanatory model for aggressive behaviour, self-esteem, victimization and physical activity in adolescents, and to use this explanatory model to analyse the association of place of residence with these variables. This research analysed 2,273 adolescents from the province of Granada (Spain) using the questionnaires Violent Behaviour at Schools, School Victimization Scale and Global Self-Esteem Scale. An analysis was carried out using structural equations. Results showed that relational and overt aggressiveness are related to self-esteem, victimization and physical activity. Furthermore, relational aggressiveness showed a stronger association with victimization and low self-esteem in adolescents who live in residential care. In addition, overt aggressiveness showed a stronger association with self-esteem in adolescents who live in family homes. Thus, exclusion and social rejection among peers have a greater impact on the victimization of young people who live outside of the family context.