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Teoria da resposta ao item : aplicação na avaliação da intensidade de sintomas depressivosCastro, Stela Maris de Jezus January 2008 (has links)
A depressão é uma doença com alta prevalência no mundo todo e se manifesta através de diversos sintomas observáveis, os chamados sintomas depressivos. Determinar a intensidade dos sintomas depressivos pode ser importante para verificar o estágio da depressão e avaliar seu desfecho, e quanto mais acurada e rápida for esta medida mais benefícios podem ser alcançados. A intensidade dos sintomas depressivos é um traço latente que pode ser medido através de instrumentos compostos por itens representativos destes sintomas observáveis, como o Inventário de Depressão Beck (BDI). É importante que a metodologia para analisar instrumentos do tipo do BDI considere que nem todos os sintomas depressivos têm a mesma importância em relação ao traço latente que pretendem medir. A Teoria da Resposta ao Item (TRI) compreende um grupo de modelos lineares generalizados e procedimentos estatísticos associados, que descrevem a associação entre o nível de um indivíduo sobre o traço latente e a probabilidade de uma resposta a um item. Estes modelos têm como uma de suas características especiais que os níveis estimados do traço latente sendo medido incorporam as diferenças em discriminação e gravidade de cada item constante no instrumento de medida, isto é, os itens entram com diferentes pesos na estimativa do traço latente dos indivíduos avaliados. OBJETIVOS: Este trabalho tem por objetivo mostrar a potencialidade dos modelos da TRI e o total aproveitamento das informações quando do uso destes modelos na análise de dados oriundos do BDI para a medida de intensidade de sintomas depressivos. MÉTODO: Os dados são provenientes de um estudo transversal conduzido para realizar a adaptação, normatização e validação para o português das Escalas Beck, em um estudo conduzido pela Dra. Jurema Alcides Cunha (PUCRS) e publicado em 2001; os modelos TRI utilizados na análise destes dados foram o modelo de Resposta Gradual de Samejima (1969) e o modelo para Itens Constrangedores de Cúri (2006). RESULTADOS: Os sintomas depressivos que melhor discriminam a população quanto ao nível de intensidade de sintomas depressivos são sentimento de fracasso, insatisfações, tristeza, auto-aversão, indecisão, dificuldade de trabalhar e pessimismo; e os que menos discriminam são perda de peso, irritabilidade e auto-acusações. Os sintomas mais graves são perda de peso, retraimento social, idéias suicidas, sentimento de fracasso apenas para as mulheres e perda da libido apenas para os homens (estes dois últimos são itens com funcionamento diferencial). CONCLUSÕES: Este estudo mostrou os inúmeros ganhos advindos da utilização de modelos TRI na avaliação da intensidade de sintomas depressivos, pois sua utilização aproveita totalmente a informação, considerando o perfil de cada indivíduo que responde ao instrumento, contribuindo na identificação daqueles que apresentam potencial depressivo. / CONTEXT: Depression is a disease with high prevalence worldwide and manifests itself through various symptoms observed, so-called depressive symptoms. To determine the intensity of depressive symptoms may be important to determine the stage of depression and evaluate its outcome, and the more rapid and accurate is this more benefits can be achieved. The intensity of depressive symptoms is a latent trait that can be measured by instruments consisting of items representative of observable symptoms, as the Beck Depression Inventory (BDI). It is important that the methodology for analyzing instruments of the type of BDI considers that not all depressive symptoms have the same importance in relation to the latent trait they wish to measure. The Item Response Theory (IRT) comprises a group of generalized linear models and statistical procedures involved, which describe the association between the level of an individual on the latent trait and the likelihood of a response to an item. These models have as one of its special characteristics that the estimated levels of latent trait being measured incorporate the differences in discrimination and severity of each item contained in the measuring instrument, that is, those items come with different weights in the estimation of latent trait of individuals evaluated. OBJECTIVES: This paper aims to show the capability of the models of the IRR and total utilization of information when using these models to analyze data from the BDI to measure the intensity of depressive symptoms. METHOD: The data come from a cross-sectional study conducted for the adaptation, standardization and validation of Beck scales for the portuguese, in a study conducted by Dr. Alcides Jurema Cunha (PUCRS) and published in 2001; the TRI models used in the analysis of these data was the Graded-Response model of Samejima (1969) and the model IRT for embarrassing items of Cúri (2006).RESULTS: The depressive symptoms that best depict the population about the level of intensity of depressive symptoms are feeling of failure, dissatisfaction, sadness, self-hatred, indecision, difficulty of work and pessimism; and those who are less discriminating are weight loss, irritability and self-accusations. The symptoms are more severe weight loss, social withdrawal, suicidal thoughts, feelings of failure only for women and loss of libido only for men (the latter two items are working with differential functioning). CONCLUSIONS: This study showed the many gains resulting from use of IRT models in the assessment of the intensity of depressive symptoms, because their use completely takes the information, considering the profile of each person who responds to the instrument, helping to identify those which have the potential depression.
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Teoria da resposta ao item : aplicação na avaliação da intensidade de sintomas depressivosCastro, Stela Maris de Jezus January 2008 (has links)
A depressão é uma doença com alta prevalência no mundo todo e se manifesta através de diversos sintomas observáveis, os chamados sintomas depressivos. Determinar a intensidade dos sintomas depressivos pode ser importante para verificar o estágio da depressão e avaliar seu desfecho, e quanto mais acurada e rápida for esta medida mais benefícios podem ser alcançados. A intensidade dos sintomas depressivos é um traço latente que pode ser medido através de instrumentos compostos por itens representativos destes sintomas observáveis, como o Inventário de Depressão Beck (BDI). É importante que a metodologia para analisar instrumentos do tipo do BDI considere que nem todos os sintomas depressivos têm a mesma importância em relação ao traço latente que pretendem medir. A Teoria da Resposta ao Item (TRI) compreende um grupo de modelos lineares generalizados e procedimentos estatísticos associados, que descrevem a associação entre o nível de um indivíduo sobre o traço latente e a probabilidade de uma resposta a um item. Estes modelos têm como uma de suas características especiais que os níveis estimados do traço latente sendo medido incorporam as diferenças em discriminação e gravidade de cada item constante no instrumento de medida, isto é, os itens entram com diferentes pesos na estimativa do traço latente dos indivíduos avaliados. OBJETIVOS: Este trabalho tem por objetivo mostrar a potencialidade dos modelos da TRI e o total aproveitamento das informações quando do uso destes modelos na análise de dados oriundos do BDI para a medida de intensidade de sintomas depressivos. MÉTODO: Os dados são provenientes de um estudo transversal conduzido para realizar a adaptação, normatização e validação para o português das Escalas Beck, em um estudo conduzido pela Dra. Jurema Alcides Cunha (PUCRS) e publicado em 2001; os modelos TRI utilizados na análise destes dados foram o modelo de Resposta Gradual de Samejima (1969) e o modelo para Itens Constrangedores de Cúri (2006). RESULTADOS: Os sintomas depressivos que melhor discriminam a população quanto ao nível de intensidade de sintomas depressivos são sentimento de fracasso, insatisfações, tristeza, auto-aversão, indecisão, dificuldade de trabalhar e pessimismo; e os que menos discriminam são perda de peso, irritabilidade e auto-acusações. Os sintomas mais graves são perda de peso, retraimento social, idéias suicidas, sentimento de fracasso apenas para as mulheres e perda da libido apenas para os homens (estes dois últimos são itens com funcionamento diferencial). CONCLUSÕES: Este estudo mostrou os inúmeros ganhos advindos da utilização de modelos TRI na avaliação da intensidade de sintomas depressivos, pois sua utilização aproveita totalmente a informação, considerando o perfil de cada indivíduo que responde ao instrumento, contribuindo na identificação daqueles que apresentam potencial depressivo. / CONTEXT: Depression is a disease with high prevalence worldwide and manifests itself through various symptoms observed, so-called depressive symptoms. To determine the intensity of depressive symptoms may be important to determine the stage of depression and evaluate its outcome, and the more rapid and accurate is this more benefits can be achieved. The intensity of depressive symptoms is a latent trait that can be measured by instruments consisting of items representative of observable symptoms, as the Beck Depression Inventory (BDI). It is important that the methodology for analyzing instruments of the type of BDI considers that not all depressive symptoms have the same importance in relation to the latent trait they wish to measure. The Item Response Theory (IRT) comprises a group of generalized linear models and statistical procedures involved, which describe the association between the level of an individual on the latent trait and the likelihood of a response to an item. These models have as one of its special characteristics that the estimated levels of latent trait being measured incorporate the differences in discrimination and severity of each item contained in the measuring instrument, that is, those items come with different weights in the estimation of latent trait of individuals evaluated. OBJECTIVES: This paper aims to show the capability of the models of the IRR and total utilization of information when using these models to analyze data from the BDI to measure the intensity of depressive symptoms. METHOD: The data come from a cross-sectional study conducted for the adaptation, standardization and validation of Beck scales for the portuguese, in a study conducted by Dr. Alcides Jurema Cunha (PUCRS) and published in 2001; the TRI models used in the analysis of these data was the Graded-Response model of Samejima (1969) and the model IRT for embarrassing items of Cúri (2006).RESULTS: The depressive symptoms that best depict the population about the level of intensity of depressive symptoms are feeling of failure, dissatisfaction, sadness, self-hatred, indecision, difficulty of work and pessimism; and those who are less discriminating are weight loss, irritability and self-accusations. The symptoms are more severe weight loss, social withdrawal, suicidal thoughts, feelings of failure only for women and loss of libido only for men (the latter two items are working with differential functioning). CONCLUSIONS: This study showed the many gains resulting from use of IRT models in the assessment of the intensity of depressive symptoms, because their use completely takes the information, considering the profile of each person who responds to the instrument, helping to identify those which have the potential depression.
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Comparação da adaptação pessoal de adolescentes judiciarizados e não-judiciarizados: a aplicação do inventário de personalidade de Jesness e de Eysenck e de humores depressivos de Beck / Personal adaptation comparison between adjudicated and non-adjudicated adolescents: the application of the Jesness anda Eysenck Personality Inventories and the Beck Humor Depressive InventoryIvana Regina Panosso 20 October 2008 (has links)
O presente trabalho, sob o referencial da Teoria da Regulação Pessoal e Social da Conduta Delituosa, ocupou-se da compreensão da adaptação pessoal de um grupo de adolescentes judiciarizados (GJ) em comparação a um grupo de adolescentes não-judiciarizados (GNJ). Sessenta adolescentes do sexo masculino, com idades entre 16 e 18 anos, participaram da pesquisa, 30 constituindo o GJ e 30 constituindo o GNJ. A coleta de dados foi feita com três instrumentos: Invetário de Personalidade de Eysenck, (IPE), Inventário de Personalidade de Jesness (IPJ) e Inventário de Depressão de Beck (BDI). Os resultados indicaram diferenças de adaptação pessoal entre os grupos na medida em que o GJ e o GNJ tiveram médias significativamente diferentes em muitas das dimensões dos instrumentos utilizados (Propensão à Delinqüência, Neuroticismo e Psicotismo do IPE; DS, OV, Im, Au, Al, AM e IA do IPJ e; Tristeza, Insatisfação, Punição, Auto-aversão, Choro, Perda de Apetite e Escore Total do BDI). As diferenças entre os grupos revelaram que a adaptação pessoal do GJ é deficitária, denotando um desenvolvimento de personalidade mais egocêntrico (em oposição a um desenvolvimento alocêntrico da personalidade), em comparação ao GNJ. Os resultados obtidos através dos três instrumentos foram discutidos à luz dos resultados publicados pela literatura científica sobre o tema. Teceram-se algumas considerações finais acerca das contribuições trazidas por este estudo, bem como acerca de suas limitações. / This study was conducted under the basis of the Offensive Behavior Personal and Social Regulation Theory. It aimed to understand the personal adaptation of a group of adjudicated adolescents (AG) in comparison to a group of non- adjudicated ones (NAG). Sixty male adolescents with ages between 16 and 18 years participated of the research (30 composing AG and 30 composing NAG). The data collection was made with three instruments: Eysenck Personality Inventory, (EPI), Jesness Personality Inventory (JPI) and Beck Depression Inventory (BDI). The results indicated that the groups differentiated on personal adaptation as AG and NAG had significantly different averages in many of the dimensions of the instruments (Propensity to the Deliquency, Neuroticism and Psicoticism of the IPE; SM, VO, Im, Au, Al, MA and AI of the IPJ and Sadness, Dissatisfaction, Punishment, Self-aversion, Tears, Appetite loss and Total score of the BDI). The inter-group differences showed that the AG personal adaptation is low, denoting a more self-centered personality development (the opposite of a personality alocentric development), in comparison to the NAG. The results from the three instruments were discussed in a comparison with the published results from scientific literature on the subject. Some final considerations regarding the contributions brought by this study, as well as some considerations regarding its limitations was carried out.
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Investigating depression and quality of life in adults diagnosed with HIV or AIDSLoonat, Naadhira January 2009 (has links)
Magister Psychologiae - MPsych / HIV and AIDS are disease conditions that have led to high mortality rates in Southern Africa since the late 1970s. The socio-economic system has led to the unequal spread of resources’ and vulnerability and exposure to HIV is more prevalent in poorer communities. The added burden of life stresses cause for many to be isolated and stigmatised and are often not equipped with the necessary support and coping skills to deal with the magnitude of these circumstances. There is a high prevalence of mental disorders and especially depression amongst individuals infected with either HIV or AIDS. Research shows that stressful life events can impact HIV course progression and impacts the QoL of those infected with HIV or AIDS. Given the social and psychological context of HIV and AIDS, the aim of the study was to examine the relationship between depression and QoL in a sample of adults diagnosed with HIV or AIDS. This quantitative, cross-sectional study used the Becks Depression Inventory II (BDI II) and the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q), to measure the variables concerned. This battery of questionnaires was administered to a purposive sample of adult individuals diagnosed with HIV or AIDS residing in a previously disadvantaged area in the Cape Metropole region. Using SPSS, data was analysed and descriptive and inferential statistics were conducted. The study found that there were more women than men with HIV or AIDS that were found to be depressed (mild, moderate and severe depression). Furthermore, the depressive state increased when the progression of the disease increased. There were generally no significant differences in the QoL experienced within various areas of life and overall life satisfaction experienced. However, the QoL experienced in work was lower. There was a significant relationship between the depressed state and QoL and life satisfaction experienced in household duties and tasks. The contribution of this study includes informing the larger research project, with regards to future treatment regimes. It will update statistics on the prevalence of depression and QoL of adults diagnosed with HIV or AIDS in the area. This study is framed within a biopsychosocial model and is theoretically underpinned by Beck’s theory of depression. Key words: HIV, AIDS, adults, depression, quality of life (QoL), Beck Depression Inventory II (BDI II), Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q), Antiretrovirals (ARV’s), prevalence data, correlations. / South Africa
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Neuropsychological outcomes, clinical characteristics and depression in a group with traumatic brain injury : a retrospective reviewJoosub, Noorjehaan 06 September 2010 (has links)
Traumatic brain injury (TBI) is a multi-faceted disease that affects individuals on physical, cognitive and emotional levels. The specific aims of this research are to explore the prevalence of depression and the relationship between depression, neuropsychological performance and clinical variables in a cohort with TBI. This is accomplished through the retrospective review of 75 neuropsychological reports containing information on clinical variables, performance on neuropsychological measures and Beck Depression Inventory- Second Edition (BDI-II) scores of individuals who had sustained a TBI. The neuropsychological domains assessed via the standardized neuropsychological measures were the domains of attention, concentration, memory, learning, non-verbal and abstract reasoning, manual dexterity, verbal recall, working memory, perception, psychomotor performance, incidental learning, concept formation and verbal fluency. These results were statistically analysed to determine relationships with depression and clinical variables. The investigations undertaken in this study signified particularly pertinent relationships in the interactions among the variables of interest. Higher education level was found to be extremely critical in assisting retention of cognitive abilities following a TBI. Primary language was also a significant differentiator of performance among tests. Age had contrasting effects, with increasing age being favourable on the Similarities Test and related to poorer performance on the Letter Cancellation Test. Increasing GCS scores were related to slower performance on the Letter Cancellation Test and decreased performance on the RAVLT Free Recall Test. Longer PTA duration was related to worse performance on the Matrix Reasoning Test. These results indicate that these indicators of injury severity did not correlate with cognitive performance in this sample after TBI. The high incidence of depression in this study confirms that major depression is a very common occurrence after TBI. This has widespread implications for patient and family counselling, and psychotropic interventions in treatment planning after TBI. Further research on the emotional and cognitive aspects of TBIs within the South African population is needed to supplement the lack of information currently available. It is recommended that further studies build on the current study by exploring larger samples, and using more stratification specificity in terms of the type of injury sustained as well as functional outcomes. Copyright / Dissertation (MA)--University of Pretoria, 2010. / Psychology / unrestricted
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What are the factors that predict cigarette smoking among African-American adults?Wilkins, Phyllis Elaine 01 January 1994 (has links)
The psychosocial and cultural predictors of cigarette smoking were examined among a sample of 175 African-American adults. Participants completed a self-report inventory containing the Beck Depression Inventory, the Perceived Stress Scale, the Speilberger State-Trait Anxiety, the African-American Acculturation Scale, and questions regarding their smoking, demographics, and risk-taking tendencies.
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Body image perceptions, stress and associated psychopathologies in a non-clinical sample.Noutch, Samantha L. January 2010 (has links)
The aims of the studies were to assess body image perceptions, the role of stress and other possible associated psychopathologies within a non-clinical sample.
The prevalence of body image concern is increasing and is widely considered as secondary to evolving socio-cultural trends. Negative self-perceptions about body image can be manifest as measurable indicators of physiological stress, or even psychopathology. This thesis describes two quantitative studies into the role and relevance of various causative factors in the development of negative body image in cohorts of volunteers drawn from the general population of the University of Bradford in West Yorkshire, UK.
In Study One, subjects (n=360) completed a self-directed questionnaire that psychometrically measured satisfaction/dissatisfaction with personal appearance, queried which external sources influenced those opinions, and correlated these with demographic information. In particular, we sought to examine how a subject¿s opinion about their personal appearance varied with age, gender, ethnicity, mental health, relationship status, sexual orientation and Body Mass Index (BMI). Subjective views regarding personal appearance were determined by answers given to specific body image questions that revealed a subject¿s day-to-day appearance concerns, all preoccupations, and the extent to which these concerns resulted in distress, all social impairment.
Overall, the results demonstrated that BMI values were positively correlated with personal appearance concerns. High BMI values correlated with greater dissatisfaction with personal appearance. Self ratings of appearance values were negatively correlated with BMI scores. Subjects who gave themselves high appearance ratings were relatively unaffected by media influence with regard to their image, compared to subjects rating themselves less attractive. These latter subjects also showed higher peer pressure scores in terms of both the amount of time they compared themselves to peers, and the degree to which peer comparisons affected their self-appearance ratings. Based on responses to the body image questions specifically, the entire cohort of subjects were categorised into principal clusters: those largely unaffected by any body image concerns; and those profoundly distressed by their self assessed body image. Perhaps the most interesting aspect of these findings is that the scores for this latter (n=17) group of subjects on the body image questions revealed a degree of personal distress this is almost identical to the scores expected from those people diagnosed with body dysmorphic disorder (BDD). Collectively, these results suggest that high BMI values in subjects negatively impact on self-appearance ratings, render subjects more prone to media messages that portray body image ideals, and elicit frequent comparisons with peers to validate self-image concerns. Furthermore, severely affected subjects with high BMI scores may show similar psychopathology to that of BDD sufferers. In Study Two, a small cohort of subjects (n=60) were given questionnaires and were interviewed to further investigate self-appearance ratings and mood/depressive traits. The body image questions used in Study One to assess image concerns and the magnitude of distress were repeated in Study Two. Mood and depressive state were measured using the validated Beck¿s Depression Inventory (BDI). In parallel, subjects completed the Derriford Appearance Scale 59 (DAS 59), which is a valid psychometric indication of an individual's perception of their appearance as ¿normal¿ or ¿disfigured¿, and used as a tool by plastic surgeons to inform decisions regarding the necessity for surgery to correct an individual's appearance. Physiological markers were recorded before and after exposure of subjects to a physical and a psychological stressor: these were saliva concentrations of cortisol and sIgA (an immune marker), blood glucose and blood pressure.
The results of Study Two revealed no changes in scores for any of the physiological measures following stressors. BDI scores for most subjects fell within normal ranges, although females scored higher than males, but not at a pathological level. Those subjects with a history of mental illness or those who reported feeling a high degree of stress on a daily basis, or those who expressed greater self-appearance concerns, all had significantly elevated BDI values. Perhaps the most intriguing finding from Study Two, as in Study One, was that subjects again tended to fall within specific categories for body image concerns: those unaffected or minimally affected by body image concerns, and those (n=6) greatly and deleteriously affected by body image concerns. This subsection of subjects also scored very high on the DAS 59 for disfigurement.
On the basis of these findings it would seem that body image concerns may be severe enough for some individuals for them to perceive themselves as actually being disfigured, or that the DAS 59 (a widely used assessment tool in plastic surgery), may not be entirely appropriate for assessment of an individual's need for surgery because it cannot distinguish between those genuinely disfigured and those merely expressing severe body image concerns.
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Primeiro perfil do usuário de "êxtase" (MDMA) em São Paulo / Ecstasy users in São Paulo, Brazil : first profileAlmeida, Stella Pereira de 26 September 2000 (has links)
O presente estudo teve como objetivo identificar os padrões de uso de "êxtase" na cidade de São Paulo. Os usuários foram recrutados através da técnica de amostragem snowball, também utilizada para o recrutamento do grupo controle, composto de indivíduos com estilo de vida semelhante aos primeiros mas que nunca haviam experimentado "êxtase" (não usuários). Usuários (52) e não usuários (52) foram entrevistados quanto às características sócio-demográficas e quanto ao uso de drogas psicotrópicas; usuários também responderam questões sobre circunstâncias de uso e efeitos do "êxtase". Através da Escala de Impulsividade de Barratt e dos Inventários de Depressão de Beck e de Ansiedade Traço-Estado (IDATE-traço) foram medidas impulsividade, depressão e ansiedade de ambos os grupos. Os dois grupos apresentaram características sócio-demográficas semelhantes: a maioria pertencia à classe média, era jovem, heterossexual, solteira e com nível superior. Entre os usuários o consumo de outras drogas psicotrópicas foi expressivamente superior. Outras características mais freqüentes no grupo de usuários foram a presença de tatuagens e piercings, a frequência a "raves" e a preferência pela música eletrônica. No Inventário de Depressão de Beck os usuários apresentaram pontuação significativamente menor quanto à depressão. Os resultados das escalas de impulsividade e ansiedade não apresentaram diferenças significativas entre os dois grupos. Os padrões de uso de "êxtase" dos usuários entrevistados são semelhantes aos padrões descritos por pesquisas realizadas na Europa e em Sidney: a maioria dos usuários consome um ou dois comprimidos a cada episódio de uso, apenas nos finais de semana ou férias, mais freqüentemente na companhia de várias pessoas, em ambientes ligados ao lazer noturno, como lugares para dançar, "raves" e festas. Os comprimidos são geralmente adquiridos de amigos ou conhecidos nesses locais. A maioria dos usuários associa "êxtase" a outras drogas psicotrópicas, particularmente maconha. As características sócio-demográficas dos usuários entrevistados e seus padrões de aquisição e consumo de "êxtase" indicam um caráter pouco marginal do uso. São sugeridas estratégias de Redução de Dano caso o uso de "êxtase" se difunda em São Paulo. / The present study was aimed at identifying patterns of ecstasy (MDMA) use in the city of São Paulo. Ecstasy users were recruited through the snowball technique. Using the same technique, a control group of subjects that had never tried the drug (non users) was recruited among individuals sharing with users a similar life style. Users (N=52) and non users (N=52) were interviewed in order to obtain socio-demographic data and data on use of psychoactive drugs; users were also questionned as to the circumstances surrounding their use of the drug. Besides, levels of anxiety, depression and impulsiveness were assessed through Spielberger's IDATE Trace Inventory, Beck's Depression Inventory and Barratt Impulsiveness Scale. Both users and non users revealed similar socio-demographic characteristics: most subjects were middle class young heterosexual single men and women who had a college degree. Multiple drug use was more frequent among users than among non users. Other features that were significantly more accentuated among users than among non users were the presence of tattoos and piercings, the frequency to raves and the preference for electronic music. Beck Inventory results pointed to significantly lower depression scores among users. No differences were observed between groups in anxiety and impulsiveness scores. Ecstasy consumption patterns among users are similar to those reported in Europe and Australia: most subjects take one or two pills per episode, during weekends or vacations, usually with company and in social gatherings such as dancings, raves and parties. The drug is predominantly acquired from friends or acquaintances in these same spots. Most users reported consuming ecstasy in combination with other psychoactive drugs, particularly marihuana. The socio-demographic features of users as well as the way they buy and consume the drug suggest that the present pattern of use is not connected to illegal or marginal activities. Harm reduction strategies are suggested in case of ecstasy's use increases and spreads among the young population of the city.
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Der Zusammenhang von Social-Media-Nutzung und psychischer Gesundheit bei Silver SurfernGlöckner, Richard 07 February 2018 (has links) (PDF)
Innerhalb der letzten Jahre nahm der Anteil aktiver Internetnutzer über 50 Jahre rapide zu. Auch die damit verbundene Präsenz derer in sozialen Online-Medien erfuhr einen Zuwachs. Die Risiken und Potenziale der Aktivitäten auf diesen Plattformen wurden bisher
nahezu ausschließlich altersunabhängig oder nur in Bezug auf eine recht junge Altersgruppe untersucht. Um auf den daraus ergehenden Forschungsbedarf zu reagieren, wurde auf Basis umfassender Literaturrecherche ein entsprechendes Messinstrument in Form eines Online-Fragebogens entwickelt. Hauptelemente sind dabei die Art und Weise der Social-Media-Nutzung, die durch den Grad der Depression repräsentierte psychische Gesundheit, sowie diese beeinflussende Faktoren. Zu Erfassung der depressiven Ausprägung wurde das verkürzte Beck-Depressions-Inventar implementiert und für einen Korrekturversuch des vermuteten Gender Bias angepasst. Der Feldzugang wurde durch das Respondent Driven Sampling in Kombination mit der Vorgehensweise des viralen Marketings geschaffen. Der Fragebogen sowie dessen geplante Verbreitung wurde mit Hilfe eines Pretest auf seine Güte und etwaige Probleme geprüft. Um die ermittelten Effekte der Zielgruppe (N=25) verlässlich zuschreiben zu können, wurde in gleichem Maß eine Refrenzgruppe (N=26) befragt. Die ermittelten Ergebnisse konnten einen Optimierungsbedarf am Erhebungsinstrument und der Umsetzung der gewählten Verbreitungsmethode aufzeigen. Zudem wurden erste Erfolge für den Ausgleichsversuch des Gender Bias verzeichnet. Die Zusammenhänge von Art und Weise der Social-Media-Nutzung und dem Grad der Depressionen wurden in Anlehnung an bestehende theoretische Ansätze untersucht. Neben der persönlichen Relevanz einzelner Grundfunktionen konnten bei den Silver Surfern vor allem die Motive sozialer Interaktion innerhalb sozialer Online-Medien die Ausprägung von Depressionen erklären.
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Primeiro perfil do usuário de "êxtase" (MDMA) em São Paulo / Ecstasy users in São Paulo, Brazil : first profileStella Pereira de Almeida 26 September 2000 (has links)
O presente estudo teve como objetivo identificar os padrões de uso de "êxtase" na cidade de São Paulo. Os usuários foram recrutados através da técnica de amostragem snowball, também utilizada para o recrutamento do grupo controle, composto de indivíduos com estilo de vida semelhante aos primeiros mas que nunca haviam experimentado "êxtase" (não usuários). Usuários (52) e não usuários (52) foram entrevistados quanto às características sócio-demográficas e quanto ao uso de drogas psicotrópicas; usuários também responderam questões sobre circunstâncias de uso e efeitos do "êxtase". Através da Escala de Impulsividade de Barratt e dos Inventários de Depressão de Beck e de Ansiedade Traço-Estado (IDATE-traço) foram medidas impulsividade, depressão e ansiedade de ambos os grupos. Os dois grupos apresentaram características sócio-demográficas semelhantes: a maioria pertencia à classe média, era jovem, heterossexual, solteira e com nível superior. Entre os usuários o consumo de outras drogas psicotrópicas foi expressivamente superior. Outras características mais freqüentes no grupo de usuários foram a presença de tatuagens e piercings, a frequência a "raves" e a preferência pela música eletrônica. No Inventário de Depressão de Beck os usuários apresentaram pontuação significativamente menor quanto à depressão. Os resultados das escalas de impulsividade e ansiedade não apresentaram diferenças significativas entre os dois grupos. Os padrões de uso de "êxtase" dos usuários entrevistados são semelhantes aos padrões descritos por pesquisas realizadas na Europa e em Sidney: a maioria dos usuários consome um ou dois comprimidos a cada episódio de uso, apenas nos finais de semana ou férias, mais freqüentemente na companhia de várias pessoas, em ambientes ligados ao lazer noturno, como lugares para dançar, "raves" e festas. Os comprimidos são geralmente adquiridos de amigos ou conhecidos nesses locais. A maioria dos usuários associa "êxtase" a outras drogas psicotrópicas, particularmente maconha. As características sócio-demográficas dos usuários entrevistados e seus padrões de aquisição e consumo de "êxtase" indicam um caráter pouco marginal do uso. São sugeridas estratégias de Redução de Dano caso o uso de "êxtase" se difunda em São Paulo. / The present study was aimed at identifying patterns of ecstasy (MDMA) use in the city of São Paulo. Ecstasy users were recruited through the snowball technique. Using the same technique, a control group of subjects that had never tried the drug (non users) was recruited among individuals sharing with users a similar life style. Users (N=52) and non users (N=52) were interviewed in order to obtain socio-demographic data and data on use of psychoactive drugs; users were also questionned as to the circumstances surrounding their use of the drug. Besides, levels of anxiety, depression and impulsiveness were assessed through Spielberger's IDATE Trace Inventory, Beck's Depression Inventory and Barratt Impulsiveness Scale. Both users and non users revealed similar socio-demographic characteristics: most subjects were middle class young heterosexual single men and women who had a college degree. Multiple drug use was more frequent among users than among non users. Other features that were significantly more accentuated among users than among non users were the presence of tattoos and piercings, the frequency to raves and the preference for electronic music. Beck Inventory results pointed to significantly lower depression scores among users. No differences were observed between groups in anxiety and impulsiveness scores. Ecstasy consumption patterns among users are similar to those reported in Europe and Australia: most subjects take one or two pills per episode, during weekends or vacations, usually with company and in social gatherings such as dancings, raves and parties. The drug is predominantly acquired from friends or acquaintances in these same spots. Most users reported consuming ecstasy in combination with other psychoactive drugs, particularly marihuana. The socio-demographic features of users as well as the way they buy and consume the drug suggest that the present pattern of use is not connected to illegal or marginal activities. Harm reduction strategies are suggested in case of ecstasy's use increases and spreads among the young population of the city.
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