El objetivo del presente estudio fue analizar las propiedades psicométricas de la Escala de Síndrome Premenstrual (ESPM) en una muestra de 461 estudiantes universitarias de pregrado de cuatro universidades privadas de Lima Metropolitana. El rango de edades de la muestra fue de entre los 16 a 27 años (M = 19.70, DE = 1.84). Los instrumentos aplicados fueron la ESPM, la Escala de Ansiedad de Zung (EAZ) y la Escala de Depresión de Zung (EDZ). Como evidencia de validez basada en la estructura interna, se realizó un análisis factorial exploratorio (AFE, n = 230) teniendo como resultado una estructura de nueve factores relacionados que explicaron el 56.35% de la varianza total considerando 41 de los 44 ítems originales. Luego se realizó un análisis factorial confirmatorio (AFC, n = 231) para evaluar el ajuste del modelo obtenido en el AFE, en el cual se obtuvieron adecuados índices de bondad de ajuste (χ2 = 1168.49; χ2/gl = 1.79; CFI = .90; RMSEA = .06; SRMR = .06), con la especificación de tres pares de errores correlacionados y la eliminación de dos ítems adicionales, resultando una estructura factorial final de 39 ítems. Los coeficientes de confiabilidad omega oscilaron entre .72 y .90. Como evidencia de validez convergente, se encontraron relaciones positivas y estadísticamente significativas entre las nueve dimensiones de la ESPM y las medidas de ansiedad y depresión. Se concluye que la ESPM y sus puntuaciones derivadas son una medida válida y fiable para evaluar el síndrome premenstrual en la población evaluada. / The present study aimed to analyze the psychometric properties (evidence of validity and reliability) of the Premenstrual Syndrome Scale (PMSS) in a sample of 461 undergraduate university students from four private universities in Lima. The age range’s sample was between 16 to 27 years old (M = 19.70, SD = 1.84). The tests applied were the Premenstrual Syndrome Scale (PMSS), the Zung Anxiety Scale (ZAS), and the Zung Depression Scale (ZDS). As evidence of validity related to internal structure, an exploratory factor analysis (EFA, n = 230) was performed, resulting in a structure on nine related factors that explained 56.35% of the total variance considering 41 of the 44 original items. Then a confirmatory factor analysis (CFA, n = 231) was performed in order to evaluate the fit of the model obtained in the CFA, in which adequate goodness fir indexes were obtained (χ2 = 1168.49; χ2/gl = 1.79; CFI = .90; RMSEA = .06; SRMR = .06). To obtain these indexes, three pair of correlated errors had to be specified and two additional items were eliminated, resulting in a thirty-nine items structure. The omega reliability coefficients ranged from .72 and .90. In addition, as evidence of convergent validity statistically positive relationships were found significant among the nine dimensions of the PMSS, anxiety and depression measures. It is concluded that the PMSS and its derived scores are a valid and reliable measure to evaluate premenstrual syndrome in this sample. / Tesis

El objetivo de la investigación fue analizar las propiedades psicométricas del Inventario de Crecimiento Postraumático (PTGI, por sus siglas en inglés) en inmigrantes venezolanos que residen en Lima Metropolitana. La muestra estuvo conformada por 250 personas, cuyas edades estuvieron en el rango de 18 a 70 años (M=29; σ=8.51). Se realizó un Análisis Factorial Exploratorio (AFE), análisis convergente con la Escala de Resiliencia y análisis de fiabilidad. Los resultados del análisis de la estructura interna indican que el PTGI presenta una estructura de 4 factores (Fuerza personal, Relaciones Interpersonales, Cambio espiritual y Nuevas Posibilidades) y 20 ítems. Además, se encontró una relación convergente con la variable resiliencia. También, se reporta una adecuada fiabilidad por consistencia interna para cada factor (ω=.65 a ω=.91). Se concluye que el PTGI es un instrumento que cuenta con evidencias de validez y puntuaciones de fiabilidad. / The objective of the research was to analyze the psychometric properties of the Posttraumatic Growth Inventory (PTGI) in Venezuelan immigrants residing in Metropolitan Lima. The sample consisted of 250 immigrants; whose ages ranged from 18 to 70 years (M=29; σ=8.51). An Exploratory Factor Analysis (EFA), convergent analysis with the Resilience Scale and reliability analysis were performed. The results of the analysis of the internal structure indicate that the PTGI presents a structure of 4 factors (Personal Strength, Interpersonal Relationships, Spiritual Change and New Possibilities) and 20 items. In addition, a convergent relationship was found for the variable resilience. Also, an adequate internal consistency reliability is reportad for each factor (ω=.65 a ω=.91). It is concluded that the PTGI has evidence of validity and reliability scores. / Tesis

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-02-14T14:22:15Z No. of bitstreams: 1 RITA PIMENTA DE DEVOTTO.pdf: 4782655 bytes, checksum: 8a2b52204f5ddcd14488022a1724b387 (MD5) / Made available in DSpace on 2017-02-14T14:22:15Z (GMT). No. of bitstreams: 1 RITA PIMENTA DE DEVOTTO.pdf: 4782655 bytes, checksum: 8a2b52204f5ddcd14488022a1724b387 (MD5) Previous issue date: 2016-12-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The central theme of this master thesis are the proactive behaviours at work called job crafting. Job crafting consists of informal individual initiatives to modify the work, in order to optimize resources and demands and or to make it more engaging and rewarding. Individuals shape their work experience through actions that redefine the tasks and relationships involved in the work, as well as through cognitive changes in the way they perceive work. The theoretical model of job crafting proposes that such actions take place at different organizational contexts and are independent of the degree of autonomy, complexity and authority involved in each work. Since its emergence in the qualitative research in 2001, the proactive approach of job crafting has attracted growing interest from researchers and practitioners, as an alternative that explains and highlights the energetic and daily efforts of the individual to change their working environment. In Brazil, research in job crafting is at an early stage. Five different interconnected studies were undertaken to deepen the theoretical and empirical knowledge about job crafting and to advance its research in Brazil. The first study presents a systematic review of the international scientific literature on job crafting. Evidences revealed an increase of scientific publications about the construct, driven by the development of measures. We found a lack of production in our context and the need to adapt measures to assess the construct and promote empirical research about job crafting in Brazil. The second study, which theoretically introduces the theme, aimed to meet the need to contribute to a chapter about job crafting for book to be published in Brazil. The chapter situates the job crafting approach, revises its conceptualization in the international literature, describes the state of the art in the evaluation of the construct, portrays the main antecedents and outcomes of job crafting according to recent empirical studies and discusses some benefits and practical implications. The third study presents the adaptation and validation of the Job Crafting Questionnaire to the Brazilian context. We conducted two studies with professionals in Brazil to investigate the internal structure of the instrument through exploratory and confirmatory techniques. The results indicated that the instrument presented adequate psychometric characteristics, being a valid measure for assessing job crafting in general populations in Brazil. The fourth study presents a systematic review and a meta-analysis on the relationship between job crafting and well-being. The positive relationship between both constructs was corroborated. We found that the job crafting has a greater effect on the positive dimension of the well-being. This study also brought evidences of a significant difference between the effect of job crafting on occupational and general well-being measures, indicating a better performance of the latter. Finally, we undertook an exploratory study about the job demands-resources model in the Brazilian context. Drawing on the network analysis technique, we investigated the relationships between the variables of working conditions, work engagement, job crafting and well-being, predicted by the job demands-resources model. Results supported some relationships predicted by the theoretical model. However, the job crafting, which predicted work engagement, did not happen at the expenses of the working conditions (resources and demands). This finding indicates the need to investigate other intrinsic precedents of job crafting. These five products of the master?s thesis advance research in job crafting in Brazil. / A tem?tica central da presente disserta??o s?o os comportamentos proativos no trabalho denominados de job crafting. Tais comportamentos consistem em iniciativas individuais informais que buscam modificar o trabalho, para otimizar seus recursos e demandas e ou para torn?-lo mais envolvente e gratificante. Os indiv?duos moldam sua experi?ncia de trabalho atrav?s de a??es que redefinem as tarefas e as rela??es envolvidas no trabalho, bem como por meio de mudan?as cognitivas na forma de perceber o seu trabalho. O modelo te?rico do job crafting prop?e que tais a??es acontecem em diferentes contextos organizacionais e s?o independentes do grau de autonomia, complexidade e autoridade envolvidos no trabalho. Desde o seu surgimento na pesquisa qualitativa em 2001, a perspectiva proativa do job crafting tem despertado crescente interesse de pesquisadores e profissionais, como uma alternativa que explica e salienta os esfor?os proativos e cotidianos do indiv?duo para alterar seu contexto de trabalho. No Brasil, a pesquisa em job crafting encontra-se em est?gio inicial. Foram empreendidos cinco estudos diferentes e interconectados que buscaram aprofundar o conhecimento te?rico e emp?rico sobre o job crafting e avan?ar sua pesquisa no Brasil. O primeiro estudo apresenta uma revis?o sistem?tica da produ??o cient?fica internacional sobre o job crafting. Verificou-se um crescimento de publica??es cient?ficas sobre o construto, impulsionado pelo desenvolvimento de medidas. Constatou-se a aus?ncia de produ??o no nosso contexto e a necessidade de adaptar medidas para aferir o construto e impulsionar a pesquisa emp?rica sobre o job crafting no Brasil. O segundo estudo introduz teoricamente a tem?tica e objetivou atender ? necessidade de contribuir com um cap?tulo sobre job crafting para um livro ainda in?dito no Brasil1. O cap?tulo situa a abordagem do job crafting, revisa sua conceptualiza??o na literatura internacional, descreve o estado da arte na avalia??o do construto, retrata os principais antecedentes e desfechos do job crafting de acordo com recentes estudos emp?ricos, e discute alguns benef?cios e implica??es pr?ticas. O terceiro estudo apresenta a adapta??o e valida??o do Job Crafting Questionnaire para o contexto brasileiro. Conduziu-se dois estudos com profissionais no Brasil para investigar a estrutura interna do instrumento por meio de t?cnicas explorat?rias e confirmat?rias. Os resultados indicaram que o instrumento apresentou caracter?sticas psicom?tricas adequadas, sendo uma medida v?lida para avalia??o do job crafting em popula??es gerais no Brasil. O quarto estudo apresenta uma revis?o sistem?tica e uma metan?lise sobre a rela??o do job crafting com o bem-estar. Corroborou-se a rela??o positiva entre ambos construtos. Constatou-se um maior efeito do job crafting sobre a dimens?o positiva do bem-estar. Verificou-se a exist?ncia de uma diferen?a significativa entre o efeito do job crafting nas medidas de bem-estar ocupacionais e gerais, indicando um melhor desempenho destas ?ltimas. Por fim, apresenta-se um estudo explorat?rio sobre o modelo de recursos e demandas no trabalho no contexto brasileiro. Valendo-se da t?cnica de an?lise de redes, foram investigadas as rela??es previstas no modelo de recursos e demandas no trabalho, entre as vari?veis de condi??es de trabalho, engajamento no trabalho, job crafting e bem-estar. Os resultados corroboram algumas rela??es previstas no modelo te?rico. Por?m o job crafting, apesar de preditor do engajamento no trabalho, n?o aconteceu em virtude das condi??es de trabalho (recursos e demandas). Este achado indica a necessidade de investigar outros precedentes de natureza intr?nseca do job crafting. Estes cinco produtos da disserta??o avan?am o conhecimento sobre a pesquisa em job crafting no Brasil.