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This thesis presents new domain-theoretic models for randomized algorithms. A randomized algorithm can use random bits from an oracle to control its computation. The possible random bits form a binary tree, where each random choice of a bit is a branching of the tree. The randomized algorithm then determines what the output should be for each branch. This idea forms the basis of our random choice functors. However, the functor only provides one half of the model. We must also show how multiple randomized algorithms can be combined or composed. This is where the monadic structure comes into play. If we wish to join multiple randomized algorithms to form one resulting algorithm, then we can run each algorithm in parallel, using the same random bits for each. Monads are used to add a computational effect to an existing semantic model. In order to work with models of the lambda calculus, it is important to work in a Cartesian closed category of domains, due to Lambek's theorem and Scott's corollary. Our first random choice monad is shown to be an endofunctor of the Cartesian closed category BCD. If we wish to add multiple computational effects, then we can compose monads as long as the monads enjoy a distributive law. It is shown that in the category BCD, our first random choice monad enjoys a distributive law with the lower powerdomain for nondeterminism. Two variations of the random choice monad are then given. The first variation has a distributive law with the convex powerdomain in the categories RB and FS, while the second variation has a distributive law with the upper powerdomain in BCD. We use the random choice monads to develop a new programming language, Randomized PCF. This extends the language PCF by adding in random choice, allowing for the programming of randomized algorithms. A full operational semantics is given for Randomized PCF, and a random choice monad is used to give it a mathematical model (denotational semantics). Finally, an implementation of Randomized PCF is developed, and the Miller-Rabin algorithm is implemented in Randomized PCF. / Tyler Barker

We develop a theory of higher-order exact real number computation based on Scott domain theory. Our main object of investigation is a higher-order functional programming language, Real PCF, which is an extension of PCF with a data type for real numbers and constants for primitive real functions. Real PCF has both operational and denotational semantics, related by a computational adequacy property. In the standard interpretation of Real PCF, types are interpreted as continuous Scott domains. We refer to the domains in the universe of discourse of Real PCF induced by the standard interpretation of types as the real numbers type hierarchy. Sequences are functions defined on natural numbers, and predicates are truth-valued functions. Thus, in the real numbers types hierarchy we have real numbers, functions between real numbers, predicates defined on real numbers, sequences of real numbers, sequences of sequences of real numbers, sequences of functions, functionals mapping sequences to numbers (such as limiting operators), functionals mapping functions to numbers (such as integration and supremum operators), functionals mapping predicates to truth-values (such as existential and universal quantification operators), and so on. As it is well-known, the notion of computability on a domain depends on the choice of an effective presentation. We say that an effective presentation of the real numbers type hierarchy is sound if all Real PCF definable elements and functions are computable with respect to it. The idea is that Real PCF has an effective operational semantics, and therefore the definable elements and functions should be regarded as concretely computable. We then show that there is a unique sound effective presentation of the real numbers type hierarchy, up to equivalence with respect to the induced notion of computability. We can thus say that there is an absolute notion of computability for the real numbers type hierarchy. All computable elements and all computable first-order functions in the real numbers type hierarchy are Real PCF definable. However, as it is the case for PCF, some higher-order computable functions, including an existential quantifier, fail to be definable. If a constant for the existential quantifier (or, equivalently, a computable supremum operator) is added, the computational adequacy property remains true, and Real PCF becomes a computationally complete programming language, in the sense that all computable functions of all orders become definable. We introduce induction principles and recursion schemes for the real numbers domain, which are formally similar to the so-called Peano axioms for natural numbers. These principles and schemes abstractly characterize the real numbers domain up to isomorphism, in the same way as the so-called Peano axioms for natural numbers characterize the natural numbers. On the practical side, they allow us to derive recursive definitions of real functions, which immediately give rise to correct Real PCF programs (by an application of computational adequacy). Also, these principles form the core of the proof of absoluteness of the standard effective presentation of the real numbers type hierarchy, and of the proof of computational completeness of Real PCF. Finally, results on integration in Real PCF consisting of joint work with Abbas Edalat are included.

The experiences of dyslexic adults in education as well as the 'caring professions' of nursing, teaching and social work continue to be fertile ground for academic study. This study extends the range of current academic knowledge of dyslexia in the workplace by exploring the experiences of dyslexic police officers across England and Wales. The context is the extension of disability-related equality legislation to the police service in 2004. The overarching aim of the study is to examine the experiences and perceptions of dyslexic police officers who are 'on-the-streets' and not in the classroom environment. This research is underpinned by the principles of the social model of disability (Oliver 1990) and in it, dyslexia is understood not as a stand-alone difference but rather as an aspect of neurodiversity (Cooper 2009) A qualitative and exploratory research strategy was adopted. Data was collected by way of self-completed questionnaires and from face-to-face semi-structured interviews with twenty-five serving or recently resigned dyslexic police officers from ten police services from across England and Wales. The data was analysed using Layder's theory of domains and his adaptive theory (Layder 2005 & 2013). This study identified that the overwhelming majority of dyslexic police officers experienced a broad range of attitudinal, procedural and police 'barriers' to their full integration into the police organisation. All of the participants in this study had disclosed to their employing police service that they were dyslexic. Participant understanding of dyslexia and disability was deeply rooted within the medical model rather than the social model. The study identified substantial evidence of bullying, and discrimination was identified across the broad range of police services as well as significant failings in the provision of workplace assessments by Job Centre staff. Despite this treatment very few participants complained or sought redress. The dominance of the medical model of disability in wider society, together with negative aspects of police 'occupational' culture, were identified as key factors in the participants' decision making processes. This research concludes that institutional disablism in terms of dyslexia is widespread across some police services in England and Wales despite the extension of the disability discrimination legislation to the police service. The research concludes with some recommendations for policy and practice.

In-cell television is now a permanent feature of prisons in England and Wales, and a key part of the experience of modern incarceration. In-cell television was formally introduced in 1998 and its introduction took twelve years to complete across the prison estate. Its introduction was not informed by research and no formal evaluation of in-cell television in prisons has taken place. This thesis, therefore extends the small body of prisoner audience research with an exclusive focus on capturing the experience of the use of in-cell television. The research aimed to examine the impact of in-cell television on social relations in prison life in one closed male adult prison. An ethnographic research strategy was adopted and was directly informed by Layder’s (2005) theory of ‘domains’ and his ‘adaptive’ approach was used to interrogate the data from interviews and from diaries. Data collection was carried out using two methods: semi-structured interviews with nineteen prisoners and nine staff, and nine structured diaries completed by prisoners. The thesis concluded that in-cell television provides a key therapeutic resource in prisons. The study suggests that this resource is widely adopted and utilised by prisoners, staff and the institution to ‘care’ for prisoners in line with self-governance techniques and strategies. Television is exploited by prisoners and staff to enable forms of personal and inter-personal control. The thesis extends what current prison policies state about the provision of in-cell television with regard to formal policies on the incentives and privileges system for prisoners and also the interventions to promote and secure safer custody. The placement of television inside prison cells has resulted in significant shifts in the social, temporal and spatial characteristics of prison life and the types of encounters prisoners experience. Social relations within the prison setting are now routinely extended and stretched beyond the confines of the prison space as a consequence of in-cell television. Television normalises the prison cell and thus legitimates this space to hold prisoners for long periods of time, typically without structured activity. As a consequence, television’s place in the modern prison has also come to represent an unanticipated resource in the package of care for prisoners. The thesis offers a revised perspective on the role of television in prison and significantly contributes to an understanding of emotional responses to incarceration and social relations both inside and outside the prison setting. Principles of governmentality and dimensions of personal and interpersonal control emerge as fundamental to the understanding of in-cell television and the thesis offers new and significant insights into prisoners’ emotionality and their experience of what have been referred to as the ‘pains’ of incarceration (Sykes 1958/1999). This understanding and theorising about prison life was achieved through a theoretical synthesis of Layder’s (2005) domains within concepts such as governance and self-regulation, rationalization of emotions, uses and gratifications of media use, domestication of television and reach.

No mundo contemporâneo a criança pode ser vista de forma diferente do que era anteriormente, considerando as mudanças sociais que acontecem e a reflexão de como tais fatos afetam seu cotidiano. Um dos fatores, por exemplo, é o tempo que permanece na escola, pela ausência dos pais no ambiente doméstico, devido às suas necessidades de trabalhar fora de casa. Além disso, existe uma tendência das famílias a ocuparem o tempo da criança integralmente, com atividades de diferentes naturezas, com o objetivo de desenvolver o maior número de habilidades possíveis, como se ela não tivesse a vida toda pela frente para conquistar tais desafios (música, dança, natação, outros idiomas, por exemplo). A entrada da tecnologia no cotidiano infantil é outro tema que ocupa este tempo (televisão, games, vídeos). Diante desse quadro, faz-se necessário o olhar para a criança e compreender, sob seu ponto de vista, como ela julga situações de sua vida, considerando nos diferentes contextos a ação (o certo ou errado), a regra (se é respeitada e como a interpreta), a autoridade (como apoio ao desenvolvimento) e o dever (decidir por fazer algo). OBJETIVO: A presente pesquisa tem como propósito investigar se as crianças pequenas julgam de forma diferente três dilemas, revelando dano direto, dano indireto e uma situação convencional. A partir de cada dilema investigamos a relação dentre os critérios de julgamento considerando a severidade da ação, a legitimidade da regra, a legitimidade da autoridade em relação à regra e a noção de dever. Neste contexto, investigamos também a presença de aspectos da dimensão afetiva da moral e se haveria diferenças qualitativas dentre as respostas dos grupos etários (2 e 3 anos/ 4 e 5 anos). MÉTODO: Pesquisa de campo, de natureza exploratória descritiva, da qual participaram 68 crianças. Para a coleta de dados, os instrumentos utilizados foram: treinamento da escala de likert e entrevistas sobre eventos sociais, contendo dilemas com situações prototípicas do cotidiano. Os dados foram analisados qualitativamente, através de Confiabilidade Dialógica e Análise Independente de Juízes. Também foi realizada análise quantitativa (Análise Estatística Descritiva e Inferencial). RESULTADOS: Os resultados revelaram que as crianças, desde bem pequenas, estão pensando sobre as situações do dia a dia, o que deve ou não ser feito, além das orientações dos adultos. Sobre os grupos analisados não tivemos diferenças nas respostas dos meninos e meninas, os grupos de idade (2 e 3, 4 e 5 anos) apresentaram diferenças significantes do ponto de vista das justificativas mais claras quando mais velhos e, portanto, a maior clareza do que pensam. Tais grupos também apresentaram diferenças significantes no julgamento de uma situação convencional proposta no instrumento, avaliando mais ou menos grave a ação de comer com as mãos. Na comparação entre as escolas públicas e particulares identificamos diferenças nas respostas considerando as dadas pela escala de likert e suas justificativas. Nas instituições públicas observamos respostas mais convencionais e nas escolas particulares respostas convencionais e morais. CONCLUSÃO: faz-se necessário novas pesquisas com a ampliação da amostragem para comparação com os resultados dessa atual pesquisa, incluir outros instrumentos para ampliar as análises e seguir pesquisando sobre a relação da afetividade e sentimentos morais nos critérios utilizados para as crianças de 2 a 5 anos julgarem situações escolares ou familiares / In the contemporary world the child can be seen differently than it was before, considering the social changes that take place and the reflection of how these facts affect their daily lives. One factor, for example, is the time spent in school due to the absence of parents in the home environment due to their need to work outside the home. In addition, there is a tendency for families to occupy the child\'s time integrally, with activities of different natures, with the aim of developing as many skills as possible, as if she did not have the whole life ahead to conquer such challenges (music, dance, swimming, other languages, for example). The entry of technology into children\'s everyday life is another theme that occupies this time (television, games, videos). In view of this picture, it is necessary to look at the child and to understand, in his point of view, how he judges situations in his life, considering in different contexts action (right or wrong), rule (if it is respected and how it interprets it), authority (as support for development) and duty (deciding to do something). OBJECTIVE: The purpose of the present research is to investigate whether young children differently judge three dilemmas, revealing direct damage, indirect damage and a conventional situation. From each dilemma we investigate the relation between the criteria of judgment considering the severity of the action, the legitimacy of the rule, the legitimacy of authority in relation to the rule and the notion of duty. In this context, we also investigated the presence of aspects of the affective dimension of morality and if there were qualitative differences among the responses of the age groups (2 and 3 years / 4 and 5 years). METHODS: A descriptive exploratory field study was carried out in which 68 children participated. For data collection, the instruments used were: likert scale training and interviews on social events, containing dilemmas with prototypical situations of everyday life. The data were analyzed qualitatively through Dialogical Reliability and Independent Judge Analysis. Quantitative analysis (Descriptive and Inferential Statistical Analysis) was also performed. RESULTS: The results showed that children, from very young, are thinking about everyday situations, what should or should not be done, besides the orientations of adults. Regarding the analyzed groups, we did not have differences in the responses of the boys and girls, the age groups (2 and 3, 4 and 5 years) presented significant differences from the point of view of the clearer justifications when older and, therefore, the greater clarity of the what they think. These groups also presented significant differences in the judgment of a conventional situation proposed in the instrument, evaluating more or less serious the action of eating with the hands. In the comparison between public and private schools we identified differences in the answers considering those given by the likert scale and its justifications. In public institutions we observe more conventional answers and in private schools conventional and moral answers. CONCLUSION: it is necessary to carry out new researches with the amplification of the sample for comparison with the results of this current research, to include other instruments to broaden the analysis and to continue researching on the relationship of affectivity and moral feelings in the criteria used for children from 2 to 5 years to judge school or family situations

A tendência no mundo do trabalho contemporâneo tem sido marcada pela flexibilização, pelo gerenciamento pela qualidade e pela mobilização do sujeito a serviço da empresa. Tem-se uma expectativa de que o gestor seja engajado com os objetivos da empresa e mantenha sempre um bom relacionamento interpessoal. Não obstante, para que se tenha um sistema integrado em busca da rentabilidade, muitos gestores se envolvem e tendem a mobilizar suas representações e valores pessoais, seus julgamentos e sua construção social em torno dos objetivos da empresa. OBJETIVO: Este trabalho investigou se a presença e prioridade de valores morais nas representações de si dos gestores estão associadas com o aumento da escolha de juízos de domínio moral para os dilemas pesquisados. MÉTODO: Pesquisa de campo, de natureza exploratória, da qual participaram 30 gestores do ramo varejista. Para a coleta de dados, os instrumentos utilizados foram: Ficha de Identificação (dados dos gestores), Roteiro de entrevista sobre representações de si (na dimensão como pessoa e gestor) e Questionário de dilemas morais (com duas situações hipotéticas). Os dados foram analisados qualitativamente, através de Confiabilidade Dialógica e Análise Independente de Juízes. Também foi realizada análise quantitativa (Análise Estatística Descritiva). RESULTADOS: Nas representações de si os resultados apontaram que os gestores apresentam respostas com conteúdo moral como honestidade, empatia, preocupação com o próximo e justiça. Todavia foi possível encontrar respostas sem conteúdo moral como ser proativo, determinado e alcançar resultados nas empresas. Além disso, compreendeu-se que na dimensão como pessoa os gestores apresentam mais respostas de conteúdo moral do que na dimensão como gestor. Quanto aos resultados dos dilemas morais, os gestores apresentaram em suas respostas conteúdos com princípios morais como cuidar da equipe e prezar pela vida das pessoas; e sem princípios morais como seguir as regras da empresa e prezar pela profissão acima do valor da vida das pessoas. Quando as justificativas são classificadas por domínio, o que prevalece são as respostas de domínio convencional, o que pode significar a expressão da necessidade dos gestores atenderem as demandas organizacionais. CONCLUSÃO: Entende-se, a partir da amostra que quando os gestores seguem uma moral que eles legitimam, respondem as representações de si com conteúdos morais, apresentando em sequência um maior índice de justificativas com princípios morais nos julgamentos dos dilemas. Do mesmo modo, quando possuem representações de si com poucos conteúdos morais, tendem a serem mais convencionais nas respostas aos dilemas. Logo, pode-se afirmar, conforme os resultados, que as representações de si têm implicação sobre os julgamentos pesquisados / The trend in the world of contemporary work has been marked by flexibility, quality management and the mobilization of the person at the service of the company. There is an expectation that the manager is engaged with the company\'s objectives and always maintains a good interpersonal relationship. Nevertheless, in order to have an integrated system for profitability, many managers are involved and tend to mobilize their personal representations and values, their judgments and their social construction around the goals of the company. OBJECTIVE: This study investigated whether the presence and priority of moral values in managers\' self-representations are associated with the increase in the choice of judgments of moral dominance for the dilemmas surveyed. METHOD: Field research of descriptive exploratory nature in which 30 managers from the retail industry participated. For the collection of data, the instruments used were: Identity Card (managers data), Interview script about selfrepresentations (in the dimension from a person and manager perspective) and Questionnaire of moral dilemmas (with two hypothetical situations). The data were analyzed qualitatively, through Dialogical Reliability and Independent Analysis of Judges. Quantitative analysis was also performed (Descriptive Statistical Analysis). RESULTS: In the representations of themselves the results pointed out that managers present answers with moral content such as honesty, empathy, concern for others and justice. However, it was possible to find answers without moral content such as being proactive, determined and achieving results in companies. In addition, it was understood that in the dimension as a person the managers present more moral responses than in the dimension as manager. As a result of the moral dilemmas the managers presented in their responses contents with moral principles such as caring for the team and cherishing people\'s lives; and without moral principles like following company rules and cherishing the profession above the value of people\'s lives. When the justifications are classified by domain, what prevails are conventional domain responses, which may mean the expression of the need for managers to meet organizational demands. CONCLUSION: It is understood from the sample that when managers follow a morality that they legitimize, they respond to self-representations with moral contents, presenting in sequence a greater index of justifications with moral principles in the judgments of the dilemmas. Likewise, when they have selfrepresentations with little moral content, they tend to be more conventional in their responses to the dilemmas. Therefore, it can be stated, according to the results, that the self-representations have an implication on the judgments researched

A tendência no mundo do trabalho contemporâneo tem sido marcada pela flexibilização, pelo gerenciamento pela qualidade e pela mobilização do sujeito a serviço da empresa. Tem-se uma expectativa de que o gestor seja engajado com os objetivos da empresa e mantenha sempre um bom relacionamento interpessoal. Não obstante, para que se tenha um sistema integrado em busca da rentabilidade, muitos gestores se envolvem e tendem a mobilizar suas representações e valores pessoais, seus julgamentos e sua construção social em torno dos objetivos da empresa. OBJETIVO: Este trabalho investigou se a presença e prioridade de valores morais nas representações de si dos gestores estão associadas com o aumento da escolha de juízos de domínio moral para os dilemas pesquisados. MÉTODO: Pesquisa de campo, de natureza exploratória, da qual participaram 30 gestores do ramo varejista. Para a coleta de dados, os instrumentos utilizados foram: Ficha de Identificação (dados dos gestores), Roteiro de entrevista sobre representações de si (na dimensão como pessoa e gestor) e Questionário de dilemas morais (com duas situações hipotéticas). Os dados foram analisados qualitativamente, através de Confiabilidade Dialógica e Análise Independente de Juízes. Também foi realizada análise quantitativa (Análise Estatística Descritiva). RESULTADOS: Nas representações de si os resultados apontaram que os gestores apresentam respostas com conteúdo moral como honestidade, empatia, preocupação com o próximo e justiça. Todavia foi possível encontrar respostas sem conteúdo moral como ser proativo, determinado e alcançar resultados nas empresas. Além disso, compreendeu-se que na dimensão como pessoa os gestores apresentam mais respostas de conteúdo moral do que na dimensão como gestor. Quanto aos resultados dos dilemas morais, os gestores apresentaram em suas respostas conteúdos com princípios morais como cuidar da equipe e prezar pela vida das pessoas; e sem princípios morais como seguir as regras da empresa e prezar pela profissão acima do valor da vida das pessoas. Quando as justificativas são classificadas por domínio, o que prevalece são as respostas de domínio convencional, o que pode significar a expressão da necessidade dos gestores atenderem as demandas organizacionais. CONCLUSÃO: Entende-se, a partir da amostra que quando os gestores seguem uma moral que eles legitimam, respondem as representações de si com conteúdos morais, apresentando em sequência um maior índice de justificativas com princípios morais nos julgamentos dos dilemas. Do mesmo modo, quando possuem representações de si com poucos conteúdos morais, tendem a serem mais convencionais nas respostas aos dilemas. Logo, pode-se afirmar, conforme os resultados, que as representações de si têm implicação sobre os julgamentos pesquisados / The trend in the world of contemporary work has been marked by flexibility, quality management and the mobilization of the person at the service of the company. There is an expectation that the manager is engaged with the company\'s objectives and always maintains a good interpersonal relationship. Nevertheless, in order to have an integrated system for profitability, many managers are involved and tend to mobilize their personal representations and values, their judgments and their social construction around the goals of the company. OBJECTIVE: This study investigated whether the presence and priority of moral values in managers\' self-representations are associated with the increase in the choice of judgments of moral dominance for the dilemmas surveyed. METHOD: Field research of descriptive exploratory nature in which 30 managers from the retail industry participated. For the collection of data, the instruments used were: Identity Card (managers data), Interview script about selfrepresentations (in the dimension from a person and manager perspective) and Questionnaire of moral dilemmas (with two hypothetical situations). The data were analyzed qualitatively, through Dialogical Reliability and Independent Analysis of Judges. Quantitative analysis was also performed (Descriptive Statistical Analysis). RESULTS: In the representations of themselves the results pointed out that managers present answers with moral content such as honesty, empathy, concern for others and justice. However, it was possible to find answers without moral content such as being proactive, determined and achieving results in companies. In addition, it was understood that in the dimension as a person the managers present more moral responses than in the dimension as manager. As a result of the moral dilemmas the managers presented in their responses contents with moral principles such as caring for the team and cherishing people\'s lives; and without moral principles like following company rules and cherishing the profession above the value of people\'s lives. When the justifications are classified by domain, what prevails are conventional domain responses, which may mean the expression of the need for managers to meet organizational demands. CONCLUSION: It is understood from the sample that when managers follow a morality that they legitimize, they respond to self-representations with moral contents, presenting in sequence a greater index of justifications with moral principles in the judgments of the dilemmas. Likewise, when they have selfrepresentations with little moral content, they tend to be more conventional in their responses to the dilemmas. Therefore, it can be stated, according to the results, that the self-representations have an implication on the judgments researched

Este estudo teve como objetivo investigar como variáveis sociodemográficas (idade, sexo, religião e cidade), níveis de empatia dos participantes e fatores específicos da pesquisa em exclusão (grau de contato, experiência como vítima de preconceito, opinião acerca da homossexualidade e percepção de influência) se relacionam com julgamentos de situações de exclusão contra homossexuais. Essa pesquisa defende a tese de que a exclusão motivada por homofobia é um fenômeno complexo, multifacetado e que precisa ser compreendido também a partir de uma leitura da Psicologia do Desenvolvimento Moral, visto que as noções de equidade e considerações com o bem-estar do outro têm impacto direto sobre a visão do outro como humano que deve ser respeitado em sua dignidade e liberdade. Essa leitura está amparada teoricamente na Teoria do Domínio Social com a compreensão de que os juízos dos adolescentes acerca da realidade estão amparados por conhecimentos de diferentes domínios moral, convencional e pessoal e que além de ponderar entre todos os territórios esses ainda são atravessados por dimensões afetivas, cognitivas e sociais construídas em uma história de vida com experiências complexas. A amostra foi composta por 643 sujeitos. Destes, 45% eram moradores da cidade de Petrolina PE e 55% de São Paulo SP; 44% dos participantes eram do sexo masculino e 56% do sexo feminino, com idades entre 12 e 18 anos (M = 14,6; DP = 1,86). Os dados foram coletados em escolas públicas. Os questionários foram aplicados individualmente em formato autoadministrado e analisados através de procedimentos qualitativos e quantitativos. Os dados demonstraram que apesar da maioria dos adolescentes julgarem a homossexualidade como errada ou nem certa nem errada, isso não torna a exclusão certa, visto que esta foi majoritariamente avaliada como errada por questões morais. As variáveis sociodemográficas estiveram associadas a diferentes julgamentos, e destaca-se o papel importante do gênero nas diferenças dos julgamentos, podendo essa diferença estar associada diretamente as demais variáveis investigadas visto que as meninas apresentaram maiores níveis de empatia e experiências como vítimas de sexismo, bem como, maior contato com pessoas homossexuais e opiniões mais positivas acerca da homossexualidade. Quanto maior o contato com homossexuais, mais vivencias de vitimização de preconceito, maiores níveis de empatia e opinião positiva acerca da homossexualidade, mais os adolescentes avaliaram a exclusão como errada, baseados em critérios morais, convencionais e pessoais. Por outro lado, essas experiências (com exceção da vitimização) fizeram com que eles discordassem mais de razões convencionais e pessoais de que é certo excluir. Em relação às influências de pais, professores e amigos, observa-se pouca influência dos pais e professores nos julgamentos adolescentes, sendo mais evidente a influência de outros adolescentes tanto em relação aos conteúdos de igualdade e quanto na manifestação de afetos negativos em relação à homossexuais. Os resultados demonstraram ainda claramente a coexistência dos domínios nos julgamentos dessa temática. Por fim, destaca-se que esse estudo buscou contribuir para a compreensão de um fenômeno complexo sob a ótima da Psicologia do Desenvolvimento Moral, sendo esse um campo ainda pouco explorado / The purpose of this study was to investigate how sociodemographic variables (age, sex, religion and city), levels of empathy of participants and specific factors of exclusion research (degree of contact, experience as victim of prejudice, opinion about homosexuality and perception of influence) relate to judgments of situations of exclusion against homosexuals. This research defends the thesis that exclusion motivated by homophobia is a complex and multifaceted phenomenon, and that needs to be understood also from Moral Development Psychology, since the notions of equity and considerations with the well-being of the other have a direct impact on the vision of the other as a human who must be respected in their dignity and freedom. This reading is theoretically supported in the Social Domain Theory with the understanding that the adolescents\' judgments about reality are supported by knowledge of different domains - moral, conventional and personal - and that besides pondering between all the territories these are still crossed by affective, cognitive and social dimensions built on a life story with complex experiences. The sample consisted of 643 subjects. Of these, 45% were residents of the city of Petrolina - PE and 55% of São Paulo - SP; 44% of the participants were male and 56% female, with ages between 12 and 18 years (M = 14.6; SD = 1.86). Data were collected in public schools. The questionnaires were individually applied in a self-administered format and analyzed through qualitative and quantitative procedures. The data showed that although most adolescent judge homosexuality to be wrong, neither right nor wrong, it does not make the right exclusion, since it was mostly judged to be wrong on moral domain. The sociodemographic variables were associated with different judgments, and the important role of gender in the differences of the judgments is highlighted, and this difference may be directly associated with the other variables investigated since the girls presented higher levels of empathy and experiences as victims of sexism as well such as greater contact with homosexual people and more positive opinions about homosexuality. The greater the contact with homosexuals, the more experiences of victimization of prejudice, higher levels of empathy and positive opinion about homosexuality, the more adolescents evaluated the exclusion as wrong, based on moral, conventional and personal criteria. On the other hand, these experiences (with the exception of victimization) made them disagree more with conventional and personal reasons that it is certain to exclude. Regarding the influences of parents, teachers and friends, there is little influence of parents and teachers in adolescent judgments, being more evident the influence of other adolescents both in relation to the content of equality and in the manifestation of negative affections towards homosexuals. The results also demonstrated clearly the coexistence of domains in the judgments of this theme. Finally, it is emphasized that this study sought to contribute to the understanding of a complex phenomenon under the optimum of Moral Development Psychology, being a field still little explored