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- PublicationMétadonnées seulementA Dialogical View of Argumentation: The Piagetian Interview as Collaborative Thinking(2010-2-13)
; ; Sinclaire-Harding, Lysandra - PublicationMétadonnées seulementA distribution on the simplex of the Generalized Beta type(2018-5-18)Consider a random vector with positive components following a compound distribution where the mixing parameter multiplies fixed scale parameters. The closed random vector - or composition - is the vector divided by the sum of its components. We explicit on what conditions the distribution of the closed random vector does not depend on the mixing distribution. When the original vector has independent generalized Gamma components, it is shown that the invariance of the distribution of the closed random vector with respect to the mixing distribution depends on the parameters of the generalized Gamma components. This fact is exemplified with the multivariate Generalized Beta distribution of the second kind (MGB2) in which the mixing parameter follows an inverse Gamma distribution. We call the most general distribution of the closed random vector, for which the mixing parameter has no influence, the simplicial Generalized Beta (SGB). Some properties and moments of the SGB are derived. Conditional moments given a sub-composition give a way to impute missing parts when knowing a sub-composition only. Maximum likelihood estimators of the parameters are obtained. The method is applied to several examples.
- PublicationMétadonnées seulementA historical perspective on socially responsible entrepreneurship(2013-9-11)
; Kunz, Christian - PublicationMétadonnées seulement
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- PublicationAccès libreA new sampling design for the Swiss Earnings Structure Survey(2021-6-15)The Swiss Federal Statistical Office undertook to revise the sampling design of its biennial Earnings Structure Survey (ESS) for 2018. The new design uses administrative data on incomes, collected by the Swiss Compensation Office (SCO) for social insurance purposes, as proxy variables. The ESS provides information on wages and salaries paid by businesses in relation to the jobs and individual characteristics of employees. Its main products are median standardized wages for a range of population or business domains and total rewards within activity sections. The sampling design revision aimed at improving efficiency by using the SCO incomes and adapting the allocation procedure to the survey objectives: multiple medians and totals. The sampling design used for previous surveys targeted best precision on the overall average earnings under a cost constraint. A linearization technique allows replacing the estimation variance of a median with that of an estimator of total in the allocation problem. We compared results of different linearization procedures using simulations on the SCO incomes matched with the business register. The multi-objective nature of the problem required to scale up the allocation procedure for the case of several hundred interest variables. This is done in two steps: limit values for the coefficient of variation of each interest estimator in the ESS are computed taking into account the maximum achievable precision under full census and a non-response scenario. These limits are set to the publication thresholds of 3% or 5% when possible. Then, a new allocation procedure of ‘sample sizes within strata’, adapted to the ESS sampling design, aims for the minimum overall sample size under constraint that no estimator coefficient of variation exceeds its assigned limit value. The result is a sample size reduced by 10% (approx. 5’000 businesses) for the ESS2018 over the ESS2016 sample and a better control on precisions of the most relevant estimates.
- PublicationMétadonnées seulementA sociocultural exploration of shame and trauma among refugees(2018-7-2)Shame profoundly colours the experiences of the thousands of refugees entering Europe. Not only does the literature attest to the high levels of trauma among this population, research in the past decade has increasingly revealed the hidden yet pervasive role that shame may play in posttraumatic symptomatology. Shame may emerge as a result of the many forms of torture, sexual violence and other atrocities experienced in the country of origin, yet is equally exacerbated by degrading and humiliating asylum procedures, having to accept a new and often devalued social identity of being an asylum seeker, and the embarrassment of not meeting culturally-informed expectations to financially support the family back home. Shame is a complex process affecting core dimensions of the self, identity, ego processes, and personality – and is thus inextricably shaped by culture. It has a detrimental impact on health-seeking behavior, yet its masked manifestations often remain unnoticed by practitioners. This is a critical consideration for clinicians and researchers working with refugee populations, where the relation is typically marked by power differentials across a matrix of identities informing not only the shame of the refugee but of the clinicians or researchers themselves. As both a researcher and clinical psychologist working with refugee populations, I explore the myriad dimensions of shame within this context based on personal reflections of my time “in the field” as well as the burgeoning literature on this topic. Understanding shame as a health resource for refugee populations will be discussed.
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- PublicationMétadonnées seulementA teaching sequence granting space to the students’collaborative creation in the music classroom: some observations(2010-8)
; Classical traditions of research have generally been centered on the individual processes of musical composition. Our aim is to look at collective processes in order to understand how to provide space for creativity in music education in school. Activity theory, socio-cognitive research on learning, new curricula, analyses of student-teacher interaction and recent studies on collaborative creativity inform our research questions about the spare space usually allocated for students' collaborative creation in the music lesson. We proceed by designing teaching sequences that invite pupils aged 11-13 to work together and compose a piece of music. We observe what happens via video and we make a descriptive analysis of the data: how pupils distribute the tasks amongst themselves; how agreements and disagreements arise when children compose together and write it down. Usually conflicts are solved implicitly or explicitly via the chidren's engagement in efforts to manage the composition together. They make comments that are sometimes relevant and sometimes not. This study helps to understand some of the cognitive moves and social interactions that happen in such an activity. It will give us a basis for reconsidering the importance of the teacher's role in creating and supporting this type of creative interaction in the classroom. - PublicationMétadonnées seulementA Very Fast Procedure for Selecting Balancing Samples(2007-4)
; Chauvet, Guillaume - PublicationMétadonnées seulement
- PublicationMétadonnées seulementActivités cognitives et situations sociales : étude du raisonnement conditionnel chez des enfants de 10 ans lors de situations individuelles et collectives de résolution(2007-9-10)
; - PublicationAccès libre
- PublicationAccès libreActualités du droit du sport – Jurisprudence nationale et internationale(2021-11-25)Presentation at the 9th edition of the Swiss Association of Sports Law (ASDS)'s "Journées de droit du sport"
- PublicationMétadonnées seulement