This research is an enquiry to find an electoral formula that conforms to Canadian constitutional values. Three core values that are pertinent to the issue of electoral systems are identified: democracy, diversity, and efficiency. Each of these core values is divided into different aspects. These aspects will form the backbone of the evaluation of different electoral systems in this work. I will begin with an evaluation of the plurality model of elections, which is currently used in Canada. I will demonstrate that many of the attributes of the current system are not in tune with Canadian constitutional values, in particular with the progressive interpretation that the Supreme Court of Canada has given to the right to vote as enshrined in Section 3 of the Canadian Charter of Rights and Freedoms. Although the interpretation of the right to vote will be the main thrust of the constitutional scrutiny in this work, attention will also be given to other pertinent rights such as equality rights, minority rights, and the freedom of expression. Next, I will examine provincial electoral reform initiatives that were initiated in five Canadian provinces. All of these initiatives - three of which were put to referenda and eventually defeated - proposed adopting a variant of proportional representation. Accordingly, I will evaluate proportional systems according to the intended values. I will conclude that these systems have problems of their own and they also cannot strike a fine balance between competing values. In the final stage, I will make a new proposal for elections to the Canadian Parliament. First, I will demonstrate that majority systems are better candidates to attain the envisioned values. Then I will introduce a new variant of the majority model, which I call a majority-preferential two-round variant. I will demonstrate that this new variant will outperform the other variants in the attainment of values if adopted for elections to the House of Commons. Finally, I will argue that the combination of a House of Commons elected through the majority-preferential formula and a proportionally elected Senate will result in a more balanced approach to the relevant constitutional values.

La présente thèse de doctorat porte sur la relation entre la perception de la justice organisationnelle, l’émission de comportements inadaptés au travail et la santé psychologique des individus au travail. En plus de développer un outil de mesure des comportements inadaptés au travail et d’entreprendre un processus de validation de celui-ci, le présent travail propose que les comportements inadaptés au travail puissent occuper un rôle soit protecteur ou explicatif dans la relation qui unit la perception de la justice organisationnelle avec la santé psychologique des individus au travail. Au sein de cette thèse, le premier article recense la documentation scientifique quant aux variables de la perception de la justice organisationnelle, de l’émission des comportements inadaptés au travail et de la santé psychologique des individus au travail, ainsi que les liens qui unissent ces variables. Aussi, les modèles conceptuels des rôles modérateur et médiateur des comportements inadaptés au travail sont proposés au sein de la relation entre la perception de la justice organisationnelle et la santé psychologique des individus au travail. Le deuxième article a pour objectif de développer un outil de mesure des comportements inadaptés au travail et de tester ses propriétés psychométriques. Ainsi, des analyses statistiques exploratoires et confirmatoires ont été effectuées. Afin d’appuyer la valeur critériée de l’outil proposé, une analyse corrélationnelle a été réalisée avec le critère de l’adaptation. Certaines valeurs psychométriques de l’outil sont validées par les résultats obtenus. Le troisième article examine empiriquement les modèles conceptuels des rôles anticipés des comportements inadaptés au travail dans la relation entre la perception de la justice organisationnelle et la santé psychologique des individus au travail. La perception de la justice organisationnelle a été vue sous les composantes distributive, procédurale, informationnelle et interpersonnelle. De son côté, la santé psychologique des individus a été observée par le biais des éléments du bien-être et de la détresse psychologique au travail. Les différentes analyses de régressions multiples hiérarchiques ont permis d’observer l’absence du rôle modérateur des comportements inadaptés au travail. Pour sa part, l’utilisation du test de Sobel a démontré la présence du rôle médiateur des comportements inadaptés au travail dans certaines relations. Plus exactement, celles-ci sont la relation entre la justice interpersonnelle et le bien-être psychologique au travail, la relation entre la justice interpersonnelle et la détresse psychologique au travail, ainsi que la relation entre la justice distributive et la détresse psychologique au travail. Finalement, la conclusion de la thèse présente une synthèse des résultats et expose les limites et pistes de recherches futures. / The present doctoral thesis treats of the relation between perception of organizational justice, emission of misbehaviours at work, and individuals’ psychological health at work. In addition to developing and undertaking a validation process for a measuring scale of misbehaviours at work, the present thesis proposes that these behaviours may occupy either a protective or an explicative role in the relationship that unites the perception of organizational justice with individuals’ psychological health at work. Within the thesis, the first article lists scientific literature concerning the perception of organizational justice, the emission of misbehaviours at work, and individuals’ psychological health at work. This article also includes a revue of links that unite the variables presently at study. Following this review, two conceptual models about possible roles played by misbehaviours at work in the relationship between perception of organizational justice and individuals’ psychological health at work are developed. More precisely, these models are conceptualisation of the moderating and mediating roles of inadequate work behaviours. The second article’s goal is the development of a measuring scale for misbehaviours at work and testing its psychometric proprieties. In this context, exploratory and confirmatory statistical analyses were made. Also, in order to support the criterion value of the proposed tool, a correlation analysis was made with the criteria of adaptation. The results showed that certain psychometric values were validated. The third article empirically examines the conceptual models developed about the possible roles played by misbehaviours at work in the relationship between perception of organizational justice and individuals’ psychological health at work. Organisational justice perception was analysed under distributive, procedural, informational and interpersonal components. As for individuals’ psychological health at work, it was observed through the psychological well-being and distress elements. The different multiple hierarchical regression analyses helped observe the absence of a moderator role for misbehaviours at work. Using the Sobel test showed the presence of a mediator role for misbehaviours at work in the relationship between the interpersonal organizational justice component and well-being, as well as psychological distress at work. This same test highlighted the mediator role of misbehaviours at work in the relationship between the distributive component of organizational justice and the psychological distress at work of individuals. Finally, the conclusion of this thesis presents a synthesis of the results and highlights the limits and future research ideas.

Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal.

Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal