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31	Hydraulický modelový výzkum měrných clon určených pro stanovení průtoku vody v kruhových profilech s volnou hladinou / The hydraulic modelling research of specific shutter intended for determination of water flow in circular profiles with free surface Heřmanová, Lenka January 2012 (has links) The main outcome of this Thesis is a set of Q / h characteristic that was obtained extensive hydraulic model research measuring plate designed for the determination of water flow in circular profiles. The final Q / h characteristic are functions of angle and vertical cut remoteness of the top slot from the bottom of the measurement aperture. Part of the output is an overview of the expected values of uncertainties of measurement in practical use in a specific aperture in sewers and evaluation of impacts involved in determining the overall uncertainty of the flow. The performed hydraulic modeling research is therefore possible to determine Q / h and characteristics for circular sections of larger diameter and to determine their uncertainties when using specific plate. For the design and shape measuring plate of the profile with larger average output is part of a supplement for quick design of specific screens.
32	Rubric Rating with MFRM vs. Randomly Distributed Comparative Judgment: A Comparison of Two Approaches to Second-Language Writing Assessment Sims, Maureen Estelle 01 April 2018 (has links) The purpose of this study is to explore a potentially more practical approach to direct writing assessment using computer algorithms. Traditional rubric rating (RR) is a common yet highly resource-intensive evaluation practice when performed reliably. This study compared the traditional rubric model of ESL writing assessment and many-facet Rasch modeling (MFRM) to comparative judgment (CJ), the new approach, which shows promising results in terms of reliability and validity. We employed two groups of raters”novice and experienced”and used essays that had been previously double-rated, analyzed with MFRM, and selected with fit statistics. We compared the results of the novice and experienced groups against the initial ratings using raw scores, MFRM, and a modern form of CJ”randomly distributed comparative judgment (RDCJ). Results showed that the CJ approach, though not appropriate for all contexts, can be valid and as reliable as RR while requiring less time to generate procedures, train and norm raters, and rate the essays. Additionally, the CJ approach is more easily transferable to novel assessment tasks while still providing context-specific scores. Results from this study will not only inform future studies but can help guide ESL programs to determine which rating model best suits their specific needs. rubric rating comparative judgment (CJ) reliability of ESL writing assessment practicality of ESL writing assessment Arts and Humanities Linguistics
33	A Dissertation entitledDevelopment and Validation of the Mental Health Professionals’ Attitude Towards People Living with HIV/AIDS Scale (MHP-PLHIV-AS) Rose, Jared S. January 2016 (has links) No description available. Counseling Education Counseling Psychology Public Health Multicultural Education Psychology Therapy HIV AIDS people living with HIV-AIDS PLHIV attitude competency mental health Rasch Measurement Model
34	Structural equation modelling Mohanlal, Pramod 06 1900 (has links) Over the past two decades there has been an upsurge in interest in structural equation modelling (SEM). Applications abound in the social sciences and econometrics, but the use of this multivariate technique is not so common in public health research. This dissertation discusses the methodology, the criticisms and practical problems of SEM. We examine actual applications of SEM in public health research. Comparisons are made between multiple regression and SEM and between factor analysis and SEM. A complex model investigating the utilization of antenatal care services (ANC) by migrant women in Belgium is analysed using SEM. The dissertation concludes with a discussion of the results found and on the use of SEM in public health research. Structural equation modelling is recommended as a tool for public health researchers with a warning against using the technique too casually. / Mathematical Sciences / M. Sc. (Statistics) Structural equation modelling Measurement model Structural model Latent variable Multivariate statistical techniques Theory based model Path diagram Identification Specification error Multiple regression Exploratory factor analysis Confirmatory factor analysis Utilization of antenatal care services 519.535 Multivariate analysis Public health -- Research
35	人壽保險公司之績效歸因模型分析 / The Analysis of Performance Attribution Model of Life Insurance Company 謝耘曦, Hsieh, Yun Hsi Unknown Date (has links) 本研究以Plantinga（2010）對退休金基金所提出之績效歸因模型應用於臺灣的壽險公司，並檢定每單位負債下，壽險公司的資產負債配置不匹配是否會影響到公司的投資收益；以及檢定在公司規模及壽險公司負債成本兩因素做為控制變數之下，資產負債不匹配程度是否會影響到壽險公司的投資報酬率的部分，得到以下結果：（一）在2007年至2012年間，每單位負債下，壽險公司的資產負債配置不匹配會影響到公司的投資收益，且影響為負。（二）壽險公司的盈餘資產積極投資報酬率，與其負債成本間有顯著的正向相關；和公司規模間有正向相關；而與資產負債不匹配程度無明顯的相關性。（三）壽險公司的名目資產積極投資報酬率，與其資產負債不匹配程度有正向相關，但並不非常顯著；而與公司規模無明顯的相關性；與負債成本相關性之間的關係，亦不是非常顯著。此研究應用Plantinga（2010）的內部績效衡量的模型，其以每單位負債表示報酬率，更能清楚看出，若在不增加自有資本的前提下，每個績效歸因對公司負債的影響大小，可以做為業界之參考。關鍵字：資產配置、內部績效、追蹤資料、資產負債不匹配程度 / This research of pension fund is conducted based on Plantinga’s (2010) performance attribution model and applied to insurance companies in Taiwan; The research tested how insurance companies investment return per unit of liability and investment rate of return would be affected would be affected under the circumstance of asset-liability-mismatch based on two variables: company size and cost of capital. The result is shown below: （i） Under unit liability, the asset-liability allocation has negative effect on the return of insurer during 2007 to 2012. （ii） There is a significant positive relationship between insurer’s cost of liability and surplus asset active return rate; positive relationship between insurer’s liability scale and surplus asset active return rate; no significant relationship between asset-liability mismatch level and surplus asset active return rate. （iii） There is a positive but not significant relationship between asset-liability mismatch level and nominal asset active return rate; no significant relationship between insurer’s liability scale and nominal asset active return rate; no significant relationship between insurer’s cost of liability and nominal asset active return rate, either. The research, which is based on Platinga’s (2010) internal performance measurement model, demonstrates the degree of influence on company’s liability disregard of any capital injection. The result can be used as industry reference. Key words：asset-liability allocation, internal performance measurement model, asset-liability mismatch level, panel data 資產配置內部績效追蹤資料資產負債不匹配程度 asset-liability allocation internal performance measurement model asset-liability mismatch level panel data
36	Tjänsteproduktivitet : Hur kan produktivitet mätas i en tjänsteorganisation? Schultz, Helena, Sjöqvist, Lina January 2011 (has links) Problemformulering Det vi med denna uppsats vill undersöka är hur en tjänsteorganisations produktivitet kan mätas. Därför lyder vår problemformulering enligt följande: Hur kan produktivitet mätas i en tjänsteorganisation? Produktiviteten i en tjänsteorganisation påverkas av ett antal faktorer, till exempel personalen, kommunikation, ledarskap och de IT-system personalen arbetar i. Med ”mäta” syftar vi till att kvantifiera de kvalitativa faktorer som påverkar produktiviteten. Syfte Utöver att se hur produktiviteten kan mätas i en tjänsteorganisation ska vi utveckla en modell som visar hur tjänsteproduktiviteten kan mätas samt identifiera vilka faktorer som påverkar och hur de påverkar produktiviteten. Vi kommer genom ett illustrativt exempel att identifiera de faktorer som påverkar produktiviteten i den tjänsteorganisationen och hur de påverkar. Den organisation vi valt att applicera vår studie på är Folksam, avgränsat till deras bokföringsavdelning. Metod Vår kunskapssyn är hermeneutisk, vilket går i linje med vårt syfte då vi vill identifiera och tolka de faktorer som är viktiga för tjänsteproduktiviteten. Vi har valt att göra en kvalitativ studie, då identifieringen av faktorer som påverkar tjänsteproduktiviteten är ett relativt oexploaterat område och därför behöver vi undersöka det empiriskt i en etablerad organisation. Den iterativa metoden eller den gyllene medelvägen är det angreppsätt som vi valt, eftersom vi anser att det passar vår studie bäst att utgå ifrån befintlig teori och sedan enbart influeras av den för att låta empirin vara det som styr vår teoriutveckling. För att erhålla våra data har vi genomfört både observationssamtal och semistrukturerade intervjuer. Teori Vi har i huvudsak använt oss av två modeller som tillsammans ger en bild över produktiviteten i en tjänsteorganisation. Fokus ligger på Grönroos och Ojasalos (2004) tjänsteproduktivitetsmodell. Den beskriver de input och output av intern och extern effektivitet som har en påverkan på tjänsteproduktiviteten. Den säger dock lite om hur tjänsteproduktiviteten kan mätas. Vi har därför valt att komplettera denna modell med en modell gjord av Sahay (2005) som kallas Multi-factor Productivity Measurement Model. Den modellen tar upp hur tjänsteproduktvitet kan mätas genom att utveckla olika index som är anpassade till den aktuella organisationen. Utöver dessa två modeller har vi sökt och använt teorier kring de faktorer som påverkar tjänsteproduktiviteten i vår organisation. Slutsatser När produktiviteten ska mätas i en tjänsteorganisation är det viktigt att först kartlägga vilka faktorer som påverkar produktiviteten och att sedan anpassa dem efter den aktuella organisationen. Faktorer vi funnit i denna studie är bland annat ledarskap, grupper, kommunikation, IT-system och stress. Resultatet visar att de faktorer som påverkar tjänsteproduktiviteten samverkar och tillsammans ger en bild över hur tjänsteproduktiviteten ser ut och kan mätas. Service Productivity Model Produktivitet Effektivitet Tjänsteorganisation Tjänsteproduktivitet Tjänster Kommunikation Ledarskap Utbildning Stress IT-system Arbetsbelastning Kontorslandskap Interna kunder Externa kunder Folksam Business studies Företagsekonomi
37	Structural equation modelling Mohanlal, Pramod 06 1900 (has links) Over the past two decades there has been an upsurge in interest in structural equation modelling (SEM). Applications abound in the social sciences and econometrics, but the use of this multivariate technique is not so common in public health research. This dissertation discusses the methodology, the criticisms and practical problems of SEM. We examine actual applications of SEM in public health research. Comparisons are made between multiple regression and SEM and between factor analysis and SEM. A complex model investigating the utilization of antenatal care services (ANC) by migrant women in Belgium is analysed using SEM. The dissertation concludes with a discussion of the results found and on the use of SEM in public health research. Structural equation modelling is recommended as a tool for public health researchers with a warning against using the technique too casually. / Mathematical Sciences / M. Sc. (Statistics) Structural equation modelling Measurement model Structural model Latent variable Multivariate statistical techniques Theory based model Path diagram Identification Specification error Multiple regression Exploratory factor analysis Confirmatory factor analysis Utilization of antenatal care services 519.535 Multivariate analysis Public health -- Research
38	Optimierung von Messinstrumenten im Large-scale Assessment Hecht, Martin 21 July 2015 (has links) Messinstrumente stellen in der wissenschaftlichen Forschung ein wesentliches Element zur Erkenntnisgewinnung dar. Das Besondere an Messinstrumenten im Large-scale Assessment in der Bildungsforschung ist, dass diese normalerweise für jede Studie neu konstruiert werden und dass die Testteilnehmer verschiedene Versionen des Tests bekommen. Hierbei ergeben sich potentielle Gefahren für die Akkuratheit und Validität der Messung. Um solche Gefahren zu minimieren, sollten (a) die Ursachen für Verzerrungen der Messung und (b) mögliche Strategien zur Optimierung der Messinstrumente eruiert werden. Deshalb wird in der vorliegenden Dissertation spezifischen Fragestellungen im Rahmen dieser beiden Forschungsanliegen nachgegangen. / Measurement instruments are essential elements in the acquisition of knowledge in scientific research. Special features of measurement instruments in large-scale assessments of student achievement are their frequent reconstruction and the usage of different test versions. Here, threats for the accuracy and validity of the measurement may emerge. To minimize such threats, (a) sources for potential bias of measurement and (b) strategies to optimize measuring instruments should be explored. Therefore, the present dissertation investigates several specific topics within these two research areas. Psychologie Bildungsforschung Optimierung Kontexteffekte Bearbeitungszeit Blockpaarbalance Designeffekte Designbalancierung Generalisierte lineare Mischmodelle IQB IRT Lineare Mischmodelle Messmodell Messinstrument Multi-Matrix Design Parameterschätzung Parameterverzerrung Positionsbalance Rasch-Modell Testhefteffekte Testheftschwierigkeit Testheftleichtigkeit Testdesign Unvollständige Blockdesigns Positionseffekte Schulleistungsstudien context effects optimization linear mixed models generalized linear mixed models response time educational assessment cluster pair balance design effects design balance item response theory measurement model measurement instrument parameter estimation parameter bias position balance psychology Rasch model 1PL model booklet effects booklet difficulty booklet easiness test design booklet design incomplete block design multiple matrix sampling position effects large-scale assessment 150 Psychologie 11 Psychologie CM 3000 CM 3200 ddc:150

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