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The purpose of this quantitative study was to examine whether the post-deployment screening instrument currently utilized to assess active-duty Marines for symptoms of PTSD upon their return from a combat deployment can be solely relied upon to accurately assess for PTSD. Additionally, this study sought to compare the number of Marines who have sought trauma-related mental health treatment based on their answers on the Post-Deployment Health Assessment (PDHA) to the number who have sought trauma-related mental health treatment based on their answers on their PTSD Checklist â?? Military Version (PCL-M). The participants in this study were comprised of a sample of active-duty Marines that had recently returned from a combat deployment. A quantitative secondary data analysis used Item Response Theory (IRT) to examine the answers provided by the participants on both the PDHA and PCL-M. Both instruments proved to be effective when assessing symptoms of PTSD and the participants identified as having symptoms of PTSD were referred for mental health services as required. According to the results, more Marines were identified as having symptoms of PTSD using both assessment instruments (PDHA and PCL-M) compared to those identified using just the PDHA. The result was a better understanding of predictors of Marines who may later develop PTSD. The results of this study can also assist the Marine Corps with its post-deployment screening for symptoms of PTSD which in turn can provide appropriate mental health referrals for Marines if deemed appropriate.

Die vorliegende Arbeit verknüpft die Theorie der Interaktion psychischer Systeme von Kuhl (2000, 2001) mit dem Modell beruflicher Arbeitsleistung von Tett und Burnett (2003). Unter Anwendung reizorientierter arbeitspsychologischer Stressmodelle werden Hypothesen über einen durch das subjektive Bedrohungs- und Belastungspotenzial der Arbeitssituation moderierten Zusammenhang zwischen dem berufsbezogenen und nach Maßgabe der Item Response Theorie skalierbaren Persönlichkeitsmerkmal Handlungs- vs. Lageorientierung und beruflicher Arbeitsleistung aufgestellt. In drei Befragungen an N = 415, N = 331 sowie N = 49 Berufstätigen wurden querschnittliche Daten zur Hypothesenprüfung erhoben. Berufsbezogene Handlungs- vs. Lageorientierung zeigt sich als valides Subkonstrukt der allgemeinen Handlungs- vs. Lageorientierung, welches gemäß Graded Response Modell von Samejima (1969, 1997) mit 14 Items skalierbar ist. Prospektive berufsbezogene Handlungs- vs. Lageorientierung erklärt in multiplen hierarchischen Regressionsanalysen, im Gegensatz zu allgemeiner Handlungs- vs. Lageorientierung, inkrementell zu Gewissenhaftigkeit, Extraversion und Neurotizismus Anteile kontextueller und aufgabenbezogener Arbeitsleistung. Hypothesenkonträr werden diese Zusammenhänge nur marginal vom subjektiven Belastungspotential der Arbeitssituation moderiert. Die Prädiktorfunktion prospektiver berufsbezogener Handlungs- vs. Lageorientierung für berufliche Arbeitsleistung bleibt auch unter pfadanalytischer Kontrolle eines vorhandenen Common Method Bias erhalten. Die dispositionelle Fähigkeit, durch berufliche Hindernisse gehemmten positiven Affekt vorbewusst gegenregulieren zu können, scheint demnach ein bedeutender Prädiktor beruflicher Arbeitsleistung zu sein, insbesondere bei Führungskräften. Für die berufliche Eignungsbeurteilung ist es damit von diagnostischem Mehrwert, Handlungs- vs. Lageorientierung kontextualisiert zu erheben. Der Einsatz probabilistisch- testtheoretisch konstruierter Skalen steigert dabei die Effizienz des Beurteilungsprozesses. / The current paper combines personality systems interaction theory (Kuhl, 2000, 2001) with the model of job performance by Tett and Burnett (2003). Using established stress models from work psychology it is hypothesized that there is a relation between occupational action state orientation, scalable by means of items response theory, and job performance, which is moderated by the subjective stress level of job characteristics. Three surveys among samples of N = 415, N = 331, and N = 49 professionals yielded cross sectional data for investigating the hypotheses. Occupational action state orientation proves a valid construct which is compatible with Samejima’s (1969, 1997) Graded Response Model using a 14-item scale. As a result of multiple hierarchical regression analyses, the hesitation dimension of specifically occupational, in contrast to general action state orientation is a predictor of both contextual and task performance, incremental to conscientiousness, extraversion, and neuroticism. Contrary to expectations this relation is only marginally moderated by stress-relevant job characteristics. Even when controlling for an occurring common method bias by means of path analysis the occupational hesitation dimension’s predictor role perseveres. Therefore, the dispositional ability in subconsciously regulating inhibited positive affect due to occupational obstacles, seems to be a crucial predictor of job performance, especially regarding leaders. Hence, professional aptitude assessment benefits from assessing action state orientation in a contextualized manner. Application of item response theory-based scales further enhances assessment process efficiency.

The Item response Theory and its Application in the Sociology Abstract The focus of this master's thesis is an item response theory, a modern methodological approach, which models a relationship between a latent variable and measured responses to the particular item. A theoretical introduction, which explains fundamentals of the theory, is followed by a comparison with the classical test theory and suggestions of its possible applications in a field of sociology. The thesis is completed with an illustrative example using real data to evaluate an instrument for measuring subjective quality of working life in the framework of item response theory. Keywords: Item response theory, scale, reliability, model, subjective quality of working life

5 Abstract The theoretical part of the paper focuses on computerized adaptive testing (CAT) and item response theory (IRT). Also included is a chapter comparing IRT with the commonly used classical test theory (CTT). There is also a brief mention of computerized and online testing, as these types of administration differ in many aspects from conventional paper & pencil tests. The goal of this paper was to evaluate the individual ways of eEPI test administration and to compare them with eEPQ tests and self-evaluation. In the practical part the items of the extraversion scale of the Eysenck Personality Inventory (eEPI) were calibrated using a group of 124 respondents. The acquired data were subsequently used to carry out a simulation of computerized adaptive testing, which clearly demonstrated the benefits of this type of testing in comparison to the classical test form. These results were compared with the results of real CAT test administration using the original sample and a new group of respondents (Np=69, Nn=68). The results were highly correlated with the results of the simulated test. Moreover, to verify the validity of the computerized adaptive version of eEOD, the respondents' results in this test were compared with the results in the eEPQ test and in a short self-assessment scale. Finally,...

[pt] Conhecer o perfil da população brasileira que possui planos privados de saúde é fundamental para orientar as políticas da Agência Nacional de Saúde (ANS) e a linha de ação das seguradoras e operadoras de saúde. A proposta deste projeto é de fazê-lo sob a ótica do mercado de trabalho, levando em consideração a morbidade auto-referida dos indivíduos, e controlando também pelas variáveis demográficas e sócio-econômicas. Para tanto, primeiramente, realizou-se um estudo exploratório relacionando a posse de planos de saúde com estas variáveis. Depois disso, ajustamos modelos logísticos de regressão para explicar as morbidades auto referidas a partir da situação do indivíduo no mercado de trabalho, controlando pelas variáveis demográficas. A mesma classe de modelos foi utilizada como ferramenta para investigar o fenômeno conhecido como Assimetria de Informação na contratação de planos privados de saúde. Os resultados concentram os casos de assimetria de informação em algumas doenças. Pudemos identificar também grupos de trabalhadores com alta propensão a determinadas doenças em determinadas grandes regiões do país. / [en] Knowing about the profile of the Brazilian population covered by private health plans is very important to guide the National Health Agency policies, the health insurance companies` action strategies in many ways and how the many agents involved should stand toward this process. Our purpose is to do this in the light of the work market situation, taking into account his/her self-reported morbidity, controlling for the demographical and social-economical variables. We start by presenting an exploratory study linking health plan owning with these variables. We then make use of logistic regression models, which have been adjusted to explain de self-reported morbidity according to the individual`s position in the job market, controlling for the demographical variables. The same class of model has also been used as a tool to investigate the existence of Information Asymmetry in this type of contract. Our results show that information asymmetry cases are concentrated in some diseases. We could also find some worker groups very likely to being ill from specific diseases in some specific regions of the country.