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Statistical Methods for Dealing with Outcome Misclassification in Studies with Competing Risks Survival OutcomesMpofu, Philani Brian 02 1900 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / In studies with competing risks outcomes, misidentifying the event-type responsible
for the observed failure is, by definition, an act of misclassification. Several authors have
established that such misclassification can bias competing risks statistical analyses, and have
proposed statistical remedies to aid correct modeling. Generally, these rely on adjusting
the estimation process using information about outcome misclassification, but invariably
assume that outcome misclassification is non-differential among study subjects regardless
of their individual characteristics. In addition, current methods tend to adjust for the
misclassification within a semi-parametric framework of modeling competing risks data.
Building on the existing literature, in this dissertation, we explore the parametric modeling
of competing risks data in the presence of outcome misclassification, be it differential or
non-differential. Specifically, we develop parametric pseudo-likelihood-based approaches
for modeling cause-specific hazards while adjusting for misclassification information that is
obtained either through data internal or external to the current study (respectively, internal
or external-validation sampling). Data from either type of validation sampling are used
to model predictive values or misclassification probabilities, which, in turn, are used to
adjust the cause-specific hazard models. We show that the resulting pseudo-likelihood
estimates are consistent and asymptotically normal, and verify these theoretical properties
using simulation studies. Lastly, we illustrate the proposed methods using data from a
study involving people living with HIV/AIDS (PLWH)in the East-African consortium of the International Epidemiologic Databases for the Evaluation of HIV/AIDS (IeDEA EA). In
this example, death is frequently misclassified as disengagement from care as many deaths
go unreported to health facilities caring for these patients. In this application, we model
the cause-specific hazards of death and disengagement from care among PLWH after they
initiate anti-retroviral treatment, while adjusting for death misclassification. / 2021-03-10
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Skilda organisationskulturers påverkan vid affärssystemsimplementationer : En kvalitativ studie om skilda organisationskulturer på ett internationellt företagErixal, Camilla, Palmqvist, Helene January 2019 (has links)
Allt fler organisationer eftersträvar enhetliga arbetssätt och försöker att uppnå detta genom användandet av affärssystem. Affärssystemsimplementationer är komplexa och tidskrävande projekt och kan försvåras på grund av organisationskultur som betraktas som en kritisk faktor. När organisationer expanderar över landsgränser uppstår utmaningen med att skapa enhetliga arbetssätt trots skilda rådande kulturer, vilket leder fram till frågeställningen: ”Hur påverkar skilda organisationskulturer affärssystemsimplementationer i internationella organisationer?“. Denna studie baseras på intervjuer med anställda på ett internationellt företag som vid tillfället höll på att implementera ett nytt affärssystem i syfte att uppnå enhetliga arbetssätt. Diskursanalys användes för att analysera respondenternas tal med utgångspunkt från de fyra kulturtyperna i Competing Values Framework (CVF) för att identifiera hur kulturella skillnader och likheter påverkar affärssystemsimplementationen i en internationell organisation. Studien resulterar i att skilda organisationskulturer både underlättar och försvårar affärssystemsimplementationen. En av slutsatserna är att skilda organisationskulturer kan påverka tiden för en affärssystemsimplementation beroende på vilken typ av organisationskultur som avdelningen har. / Organizations today strive to achieve common work ways and try to do so by using enterprise resource planning systems (ERP). ERP-implementations are complex and time-consuming projects and can be affected by organizational culture which is seen as a critical factor. However, when organizations choose to expand to other countries the challenge to create common work ways is faced due to different cultures which concludes in the question:”How does different organizational cultures affect ERP-implementations in international organizations?“. This study is based on interviews in an international company, who by the time, was implementing a new ERP-system with the purpose to create common work ways. Discourse analysis was used to analyze the informant’s answers through the four types of culture in Competing Values Framework (CVF) to identify how the cultural similarities and differences affect ERP-implementation in an international organization. This study shows that organizational culture both simplifies and complicates the ERP-implementation. One of the conclusions is that the ERP-implementation might affect the time needed for a ERPimplmentation depending on which organizational culture the department has.
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A interferência da cultura organizacional na atividade do auditor interno: um estudo com auditores internos de instituições financeirasDias, Sergio Ricardo Leandro 21 August 2013 (has links)
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Sergio Ricardo Leandro Dias.pdf: 1146406 bytes, checksum: 70110f40fce61755a29c1ffd5113eec6 (MD5)
Previous issue date: 2013-08-21 / The main objective of this study was to investigate the cultural interference in the activities of
internal auditors of financial institutions in Sao Paulo. The research takes place in the
contemporaneous business environment, where culture has become more and more important
as a management and control tool, which drives people s behavior within the organization. In
this same context, internal audit strengthens, as the society demands more transparency and
more robust corporate governance practices from the organizations. This is particularly
relevant in the case of financial institutions, given the social and economic impact of
shortcomings in control activity of banking industry. Moreover, internal auditor must perform
his work in an objective and independent manner, since being in the organization, he can be
influenced by its culture. From this standpoint, the question which drives this study emerges:
how does organizational culture interferes in the work of internal auditor? Thus, it is assumed
that the internal auditor, as part of the organization, shares organizational culture, its values
and beliefs, so that his work suffers interference from this culture. To support this study, a
literature review was performed, on the concept of organizational culture and internal audit.
The Competing Values Framework and its cultural typology was chosen to base the research.
The methodological approach was mixed, since quantitative and qualitative data were
collected. Participants based on convenience sampling strategy and data was analyzed with
the support of electronic spreadsheets and NVivo application for Qualitative Analysis. As a
result, a model was drawn, describing that the interference of organizational culture in internal
auditor s work takes place mainly through an image , which contains the values and the
expectations the organization has concerning the way internal auditors must act. The main
images mentioned by the participants relate to add value and being partner and
collaborative . These symbols correspond to the cultural types that predominate in the
analyzed sample, which are market and clan cultures. Suffice it say that internal audit work is
mainly affected in the planning process, when audit objects are chosen, and effectiveness, that
is, the implementation of audit recommendations. / O objetivo principal do presente trabalho é investigar a interferência da cultura organizacional
no trabalho do auditor interno de instituições financeiras em São Paulo. A pesquisa se insere
no ambiente de negócios atual em que a cultura tem-se tornado cada vez mais importante
como instrumento de gestão e de controle, que direciona o comportamento dos indivíduos.
Neste mesmo contexto, a auditoria interna se fortalece na medida em que sociedade demanda
das organizações mais transparência e práticas mais robustas de governança corporativa, o
que é particularmente relevante em relação às instituições financeiras, dado o impacto social e
econômico que a deficiência de controles na atividade bancária pode trazer. Ocorre que o
auditor interno deve realizar seu trabalho de forma objetiva e independente, mas por estar
dentro da organização pode ser influenciado pela cultura organizacional. Deste fato emerge a
questão que norteia este estudo: como a cultura organizacional interfere no trabalho do auditor
interno? Assim, partiu-se do pressuposto de que o auditor interno, sendo parte da organização,
partilha da cultura organizacional, com seus valores e crenças, de modo que em seu trabalho
sofre a interferência dessa cultura. Para subsidiar o estudo, realizou-se uma pesquisa na
literatura sobre o conceito de cultura organizacional e sobre auditoria interna. Utilizou-se o
quadro teórico Competing Values Framework e sua tipologia cultural. A metodologia aplicada
foi mista, de modo que foram coletados dados quantitativos e qualitativos. A amostra foi
selecionada pelo critério de acessibilidade e o tratamento dos dados foi feito com o auxílio de
planilhas eletrônicas e do aplicativo NVivo. O resultado da pesquisa foi a proposição de um
modelo que descreve a interferência da cultura organizacional no trabalho do auditor interno
principalmente através do estabelecimento de uma imagem da auditoria, a qual carrega em si
os valores e as expectativas da organização sobre como o auditor deve atuar. As principais
imagens mencionadas dizem respeito a adicionar valor e a ser parceira e colaboradora , as
quais de certo modo correspondem às características dos dois tipos culturais predominantes na
amostra analisada, à cultura de mercado e à cultura de clã, respectivamente. Por fim, o
trabalho do auditor é afetado principalmente no que diz respeito ao planejamento, ou seja, a
definição do que será avaliado pela auditoria, e à efetividade, que é a implantação das
medidas recomendadas como resultado das avaliações.
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Sjukvårdspersonals syn på arbete och arbetsplats, utifrån organisatorisk- och nationell kultur : En jämförande studie mellan Sverige och SchweizBrynte, Sofia, Hörnqvist, Emma January 2023 (has links)
Sammanfattning Titel:Sjukvårdspersonals syn på arbete och arbetsplats, utifrån organisatorisk- och nationell kultur - En jämförande studie mellan Sverige och Schweiz. Nivå:Examensarbete på grundnivå (kandidatexamen) i ämnet företagsekonomi Författare:Emma Hörnqvist och Sofia Brynte Handledare:Monika Wallmon Datum:Juni 2023 Syfte: Denna studie syftar till att jämföra svensk och schweizisk sjukvårdspersonals syn på arbete och arbetsplats, utifrån organisatorisk och nationell kultur. Detta genomförs utifrån Hofstedes kulturella dimensioner & Competing value framework. Metod: I studien har vi använt oss av en kvalitativ metod, där vi genomfört tio semistrukturerade intervjuer och enkäter. Vi valde att använda oss av respondenter som arbetar inom sjukvården men som inte besitter någon ledarroll. Resultat & slutsats: Resultaten visar på olika faktorer inom nationell- och organisatorisk kultur som påverkar sjukvårdspersonalens syn på arbete och arbetsplats. Schweiz och Sverige uppvisar likheter inom exempelvis vikten av lagar, formaliteter och protokoll för att skapa stabilitet, maskulina drag inom organisationen samt att patientkontakt påverkas av feminina karaktärsdrag. Den största skillnaden mellan länderna är hur medarbetarna behandlas av organisationen. Schweiz fokuserar mer på det anställdas välmående, beskrivet av HR synsättet från CVF, i jämförelse med Sverige. Examensarbetets bidrag:Studiens teoretiska bidrag grundar sig i vikten att förstå det anställdas syn på arbete och arbetsplats, utifrån nationell- och organisatorisk kultur, oavsett om företaget är vinstdrivande eller inte. Detta påverkar nämligen verksamhetens möjlighet att uppnå gynnsamma resultat. Det praktiska bidraget är att studien visar på en del, av troligtvis många delar, som skulle kunna bidra till framtida utveckling av sjukvården. Förslag till fortsatt forskning:Vidare forskning kan studera hur existerande konkurrens inom sjukvården påverkar de anställda. Andra kulturella dimensioner kan inkluderas för att se hur det skiljer sig mellan dessa. Vidare studie skulle även kunna studera om liknande mönster kan urskiljas i de andra delarna av Schweiz, andra länder eller specifika avdelningar på sjukhuset, utifrån exempelvis samma teoretiska ramverk. Nyckelord:Ledarskap, Hofstedes kulturella dimensioner, Competing Value framework, sjukvården, organisationskultur, nationell kultur. / Abstract Title:Healthcare workers' view on work and work environment, through the perspective of organizational and national culture - A study comparing Sweden and Switzerland. Level:Student thesis, final assignment for Bachelor Degree in Business Administration. Authors:Emma Hörnqvist och Sofia Brynte Supervisor:Monika Wallmon Date:June 2023 Aim:A study aiming to compare Swedish and Swiss healthcare workers' view on work and work environment, through the perspective of organizational- and national culture. Executed using Hofstede's cultural dimensions & the Competing value framework. Method:Qualitative methods were used throughout this study, conducting ten semi-structured interviews and surveys. Respondents currently working within the health sector, and not in a leader role of the organization, were chosen. Results & conclusions:The results reveal factors within national- and organizational culture affecting healthcare workers view on work and work environment. Switzerland and Sweden show similarities regarding the importance of laws, formalities and following of protocol to maintain stability, masculine characteristics within the organization and that interactions with patients are affected by feminine characteristics. The most distinct difference between the countries is how the coworkers are treated by the organization. Switzerland has a noticeable focus on the employees well-being, described using the HR in CVF, in comparison to Sweden. Contribution of the thesis:Our study's theoretical contributions lean on the importance of understanding the employees´ view on work and work environment, through the perspective of organizational- and national culture. No matter if the organization is revenue driven or not, since it affects the organization´s possibility to achieve favorable results. The practical contribution of the study is based on displaying one, of probably many, parts to factor in when discussing future improvements of the healthcare sector. Suggestions for future research:Future studies would benefit from examining existing concurrent on the healthcare market and its effect on the employees. Including other cultural dimensions would also be a beneficial addition. Future studies could also examine if similar patterns exist in other parts of Switzerland, in other countries or in specific sectors of the healthcare system, using the same theoretical framework as our study. Key words:Leadership, Hofstede's cultural dimension, Competing Value framework, healthcare, organizational culture, national culture
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Kulturella barriärer mot Total Quality Management? : En fallstudie av ledarskap och organisationskultur i en svensk domstolJohansson, Mats January 2022 (has links)
Lämpar sig alla typer av organisationskultur för kvalitetsinitiativ enligt metoden Total Quality Management(TQM)? Uppsatsen belyserden frågan med utgångspunkt i en fallstudie av en svensk domstol där en ny myndighetschef tillträdde 2021. Syftet med uppsatsen är att undersöka hur den upplevda och önskade organisationskulturen vid en svensk domstol förändrades under det första året sedan en ny myndighetschef tillträtt. Syftet är ocksåattundersöka hur organisationskulturen skiljer sig mellan domstolens olika yrkeskategorier, och om förändringen mellan mättillfällena skiljer sig åt mellan dem. Syftet är -slutligen -att med utgångspunkt i den uppmätta organisationskulturen ta ställning till om organisationskulturen i domstolen lämpar sig för kvalitetsinitiativ enligt TQM eller inte. Syftet preciseras i följande frågeställningar:•Hur förändrades den upplevda och önskade organisationskulturen i domstolen och dess olika yrkeskategorier mellan 2021, då en ny myndighetschef tillträdde, och 2022?•Har domstolen våren 2022 en organisationskultur som lämpar sig för kvalitetsinitiativ enligt TQM?Undersökningen genomfördes genom intervjuer med domstolens ledningsgrupp,genom enkäterriktade till hela personalenoch genom en litteraturstudie. Resultatet visar att organisationskulturen förändrades såtillvida att den interna orienteringen och orienteringen mot stabilitet minskade, liksom genomslaget för den hierarkiska organisationskulturen.Domstolen har 2022 inte en organisationskultur som lämpar sig för kvalitetsinitiativ enligt TQM,eftersom de kulturella dimensionerna i TQM är oförenliga med domstolens organisationskultur. I uppsatsen diskuteras mot den bakgrunden de brister som har uppfattats i teoribildningen inom kvalitetsområdetoch som kan kopplas till organisationskulturen och dess betydelse. / Are all types of organizational culture suitable for quality initiatives according to the Total Quality Management (TQM) method? The essay sheds light on this issue on the basis of a case study ina Swedish court where a new head of authority took office in 2021.The purpose of the thesis is to investigate how the perceived and desired organizational culture in a Swedish court changedduring the first year since a new head of authority took office.The purpose is also to examine how the organizational culture differs between the court's different professional categories, and whether the change between the measurement occasions differs between them. The purpose is -finally -to take a position on the basis of the measured organizational culture on whether the organizational culture in the court is suitable for quality initiatives according to TQM or not.The purpose is specified in the following questions:• How did the perceived and desired organizational culture in the court and its various professional categories change between 2021, when a new head of authority took office, and 2022?• Does the court in the spring of 2022 have an organizational culture that is suitable for quality initiatives according to TQM?The survey wasconducted through interviews with the court's management team, through questionnaires addressed to the entire staff and through a literature study.The results show that the organizational culture changedto the extent that theinternal orientation and the orientation towards stabilitydecreased, as didthe dominance ofthe hierarchical organizational culture. In 2022 the court does not have an organizational culture that is suitable for quality initiatives according to TQM, since the cultural dimensions of TQM are incompatible with the court's organizational culture. In the essay, against this background, the shortcomings that have been perceived in the theory formation within the quality area and that can be linked to the organizational culture and its significance are discussed. / <p>2022-06-05</p>
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“Det låter som en liten klyscha, men det ligger mycket bakom det.” : En case-studie om organisationskultur i offentlig sektorSiljedahl, Linnea, Westin, Emmy January 2023 (has links)
This study aims to shed light on the relationship of organizational culture in practice and as it is portrayed in written policy. A case study was conducted by examining the culture of the coworkers from one unit. Data was collected through interviews and reading official policy documents. This was then analyzed through a lens of a theoretical framework made up of three parts; the four cornerstones of what builds a culture as presented by Edgar Schein, The competing values framework, and Public service motivation. The study shows that there was a clear connection between the culture such as it was described by the coworkers and in text. However, there was a disconnect between the perceived level of public service motivation in practice and text. This prompts a discussion about the role of public service motivation in the organizational culture of the public sector and how change can affect culture. / Den här studien avser att belysa relationen mellan organisationskultur såsom den ser ut i praktiken och som den beskrivs i skriftlig policy. En case-studie genomfördes genom att undersöka kulturen hos medarbetare från en enhet. Data samlades in genom intervjuer och genom att läsa officiella policydokument. Detta analyserades sen med hjälp av ett teoretiskt ramverk som byggdes av tre delar; Edgar Scheins fyra grundstenar som bygger upp organisationskultur, The competing values framework, och public service motivation. Studien påvisar en tydlig koppling mellan kulturen som den beskrevs av medarbetarna och som denbeskrevs i text. Däremot skiljde sig nivån av public service motivation i praktik och text. Det här ledde till en diskussion kring rollen av public service motivation i organisationskulturen inom den offentliga sektorn och hur förändring kan påverka kulturen.
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Att leda i en komplex miljö med Competing Values Framework : En studie av ledarroller i den svenska fastighetsmäklarbranschen / Managing Complexity - a Competing Values Framework Approach : A Study of Leadership Roles in the Swedish Real Estate BusinessSchillaci, Alessandro, ter Harkel, Artur January 2022 (has links)
Titel: Att leda i en komplex miljö med Competing Values Framework. En studie av ledarroller i den svenska fastighetsmäklarbranschen. Nivå: Kandidatexamen i företagsekonomi Författare: Artur ter Harkel, Alessandro Schillaci Handledare: Dr. Monika Wallmon Datum: Juni 2022 Syfte: Syftet med denna studie är att kartlägga ledarskap inom den svenska fastighetsmäklarbranschen med hjälp av Competing Values Framework (CVF). Metod: Arbetet har en kvantitativ utgångspunkt med en deduktiv ansats. Enkätundersökningen utformades efter en tvärsnittsdesign med slutna frågor. Ett icke-sannolikhetsurval med frivilligt deltagande användes för att göra urvalet. CVF är det teoretiska ramverk som har används för att studera ledarskapet och identifiera ledarroller. Resultat & Slutsats: Resultatet visar att Rational Goal Model (RGM) var den kvadrant som var mest representerad bland branschens ledare. Ledarna tillfredsställs av produktivitet och stimulerar prestation hos de anställda. Detta resultat är inte konstigt med tanke på den konkurrens som råder inom branschen. Det blir en självklarhet att fokusera på prestation och ha tydliga målsättningar. Human Relations Model (HRM) och Open System Model (OSM) är två andra kvadranter som är väldigt centrala för branschens ledare. Den genomsnittliga ledaren i branschen förstår vikten av att leda anställda på ett diplomatiskt och rättvist sätt och att söka efter innovativa lösningar. Internal Process Model (IPM) är den kvadrant som återfinns minst bland branschens ledare. Konservativt beslutsfattande och förutsägbara handlingar är inte vanligt förekommande i branschen. Vidare har den genomsnittliga ledaren i branschen förstått vikten av att kombinera flera kvadranter. Ledarna kombinerade HRM med RGM för att skapa rollen Caring confrontation och OSM med IPM för att skapa Practical vision. En ledare ska däremot inte fokusera för mycket på individuella roller i CVF, att enbart fokusera på RGM kan vara ansträngande och förtryckande för en anställd. Bidrag: CVF prövas på nytt i en bransch där den till vår vetskap inte har tillämpats tidigare. En intressant implikation av denna studie är att fastighetsmäklarbranschens ledare kan göra en självutvärdering av sitt ledarskap för att avgöra hur deras ledarstil jämförs med resultatet i denna studie. Förslag till vidare forskning: Resultatet indikerar att ledarna kombinerar HRM med RGM och OSM med IPM. Detta väcker frågan på vilket sätt detta sker. Framtida studier kan genomföra en fältstudie på ett fastighetsmäklarkontor för att få en bättre förståelse för hur ledarna kombinerar dessa kvadranter i den dagliga driften. Framtida studier kan även använda CVF för att undersöka vilken företagskultur som råder inom fastighetsmäklarbranschen. Vidare kan Quinn’s utvärderingsmetod användas både för självutvärdering och utvärdering av andra. Framtida studier kan baseras på att anställda i fastighetsmäklarbranschen utvärderar sina ledare. Nyckelord: Ledarskap, Fastighetsmäklare, Competing Values Framework, Paradoxalt ledarskap, Beteendemässig komplexitet. / Title: Managing Complexity - a Competing Values Framework Approach. A Study of Leadership Roles in the Swedish Real Estate Business. Level: Bachelor of Business Administration Authors: Artur ter Harkel, Alessandro Schillaci Supervisor: Dr. Monika Wallmon Date: June 2022 Aim: The purpose of this study is to survey leadership in the Swedish real estate industry with the Competing Values Framework (CVF). Method: This study has a quantitative and deductive approach. The survey was based on a cross-sectional study with closed questions. Non-probability sampling with voluntary participation was used to make the sample. CVF is the theoretical framework that has been used to study leadership and to identify leadership roles. Results & Conclusions: The results show that the Rational Goal Model (RGM) quadrant was most represented among the managers. Productivity and performance among employees is important, which is not surprising given the competition that prevails in the industry. Focusing on achievements and having clear goals becomes a logical consequence of a highly competitive market. Furthermore, the Human Relations Model (HRM) and Open System Model (OSM) quadrants were well represented among the managers. These managers understand the importance of managing their employees in a diplomatic, fair manner and seek innovative solutions. The Internal Process Model (IPM) quadrant was least represented among the managers. Predictable actions and conservative decision-making are not common in this line of business. Moreover, the average manager has understood the importance of combining quadrants to create new leadership roles. The HRM and RGM quadrants were combined to create the role Caring confrontation and the OSM and IPM quadrants were combined to create Practical vision. Accordingly, a manager should not have too much emphasis on individual quadrants of the CVF. For instance, too much emphasis on RGM can be exhausting and oppressing for an employee. Contribution of thesis: To our knowledge, CVF is used in a line of business where it has not been applied before. An interesting implication of this study is that managers can make a self-assessment of their leadership to determine how their leadership style compares with the results of this study. Suggestions for future research: The results indicate that managers combine HRM with RGM and OSM with IPM. This raises the question how this really is done by the managers. Future research may conduct a field study of a real estate office to gain a better understanding of how leaders combine these quadrants in day-to-day operations. Another interesting aspect to address is that CVF is a broad tool. Future research may investigate the corporate culture that prevails in the industry. Furthermore, Quinn’s self-assessment tool can be used for both self-assessment and the assessment of others. This study only focuses on self-assessment. Future studies could be based on employees evaluating their managers. Keywords: Leadership, Real estate agents, Competing Values Framework, Paradoxical leadership, Behavioral complexity.
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The impact of organisational culture on service delivery in a major private security companyKokt, D., Van der Merwe, C.A. January 2009 (has links)
Published Article / In today's highly competitive business environment service delivery has become a key issue. Providing quality service could enhance an organisation's competitive advantage with beneficial financial implications. Service delivery requires the full cooperation and commitment of all the employees in the organisation, including management. The culture of the organisation supports this by eliciting a unified response from employees that supports the quality of service rendered to customers. In this regard the paper provides a statistical analysis of the impact of organisational culture on service delivery in a major South African private security company. Due to its applicability the Competing Values Framework (CVF) was instrumental in measuring the culture of the organisation and the award winning Baldrige Award Criteria in ascertaining its levels of service delivery.
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廣義Gamma分配在競爭風險上的分析 / An analysis on generalized Gamma distribution's application on competing risk陳嬿婷 Unknown Date (has links)
存活分析主要在研究事件的發生時間;傳統的存活分析並不考慮治癒者(或免疫者)的存在。若以失敗為事件,且造成失敗的可能原因不止一種,但它們不會同時發生,則這些失敗原因就是失敗事件的競爭風險。競爭風險可分為有參數的競爭風險與無母數的競爭風險。本文同時考慮了有治癒與有參數的混合廣義Gamma分配,並將預估計的位置參數與失敗機率有關的參數與解釋變數結合,代入Choi及Zhou(2002)提出的最大概似估計量的大樣本性質。並考慮在治癒情況下,利用電腦模擬來估計在型一設限及無訊息(non-informative)的隨機設限(random censoring)下之一個失敗原因與兩個失敗原因下的參數平均數與標準差。 / The purpose of survival analysis is aiming to analyze the timeline of events. The typically method of survival analysis don’t take account of the curer (or the immune). If the event is related to failure and there are more than one possible reason causing the failure but are not happening at the same time, we called the possible reasons a competing risk for failed occurrence. competing risk can be categorized as parameter and non-parameter. This research has considered the generalized gamma distribution over both cure and parameter aspects. In addition, it combines anticipated parameter with covariate which affected to the possibilities of failure. Follow by the previous data, it is then substituted by the large-sample property of the maximum likelihood estimator which is presented by Choi and Zhou in 2002. With considering the possibilities of cure, it uses computer modeling to investigate that under the condition of type-1 censoring and non-informatively random censoring, we will find out the parameter mean and standard error that is resulted by one and two reason causes failure.
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臺北市國民中學校長競值領導與組織氣氛關係之研究 / A study of the relationship between principals’ competing values leadership and organizational climate in junior high schools in Taipei薛仲平 Unknown Date (has links)
本研究旨在探討臺北市國民中學校長競值領導與組織氣氛關係之研究。研究目的包括:瞭解國民中學校長競值架構領導層面及學校組織氣氛之現況及關係;不同背景變項的國民中學教師,對校長競值架構領導層面知覺之差異以及對學校組織氣氛知覺之差異;根據研究結果提出建議,作為國民中學校長及未來研究者之參考。
為達成上述目的,本研究採用「問卷調查法」來進行研究,以臺北市公立國民中學教師為研究對象。本研究正式問卷調查,為求具代表性,依不同學校規模分別抽取「24班(含)以下」學校8所、「25-48班」及「49班(含)以上」學校12所,共32所學校。發出問卷700份,回收631份,回收率90.1%,無效問卷26份,有效問卷605份,有效回收率為86.4%。本研究使用工具「臺北市國民中學校長競值領導與組織氣氛關係之研究」問卷,除了受試者基本資料外,包含兩份量表,分別是「校長競值領導行為量表」與「中學組織氣氛描述問卷」。在資料的統計分析方面採用描述性統計、t 考驗、單因子變異數分析、多元逐步迴歸分析等方法。根據研究發現,歸納本研究結論如下:
本研究主要結論如下:
一、臺北市國民中學教師對校長競值領導行為之「注重競爭」感受最高,「涉及個人」感受最低。
二、臺北市國民中學教師對學校組織氣氛之「投入行為」、「支持行為」感受較佳,「受挫行為」、「指示行為」感受較差。
三、臺北市國民中學教師對「女性校長」在校長競值領導行為及學校組織氣氛上認同度較高。
四、臺北市國民中學教師感受到「51-55歲校長」在校長競值領導行為及學校組織氣氛上表現較佳。
五、臺北市國民中學教師感受到具博士教育背景之校長在組織氣氛的表現上,優於四十學分班及師範院校的校長。
六、臺北市國民中學教師對於組織氣氛的感受,男性教師對「受挫行為」高於女性教師;51歲以上教師對「支持行為」與「投入行為」感受最高、30歲以下教師對「指示行為」感受最高。
七、臺北市國民中學教師對於組織氣氛的感受,具碩博士學位教師「受挫行為」感受最高;服務21年以上教師「投入行為」感受最高、10年以下教師「指示行為」感受最高。
八、臺北市國民中學教師因為擔任職務之不同,兼任主任對「支持行為」感受最高;兼任組長「受挫行為」感受最高。
九、校長競值領導各層面對開放指數具有預測力,因此校長競值領導行為對學校組織氣氛產生顯著的正向直接影響。
關鍵詞:競值領導、組織氣氛 / This study aims to explore the relationship between principals' competing values leadership and organizational climate in junior high schools in Taipei city. The purposes of this study is to know the fact and relationship between principals' competing values leadership and organizational climate in junior high schools and the differences among junior high schools’ teacher with different background’s perceptions on principal’s competing values leadership and organizational climate in schools. According to the results of the study, we provide suggestions for principles of junior high schools and future studies.
This study conducts a questionnaire survey using stratified sampling according to school size, and surveys on 700 teachers from 32 public junior high schools in Taipei (8 schools of 24 classes below, 12 schools of 25-48 classes, and 12 schools of 49 classes above). The response rates were 90.1%; the usable rates were 86.4%. The research instruments are “Principals’ CVF Managerial Behavior Instrument” and “Organizational Climate Description Questionnaire for Secondary Schools, OCDQ-RS.” The collected data were analyzed by using the descriptive statistic, t-test, one-way ANOVA, multiple stepwise regression analysis, and so on.
According to the finding, the conclusions of this study are:
1. Junior high school teachers in Taipei were most aware of the “producing results” dimension of competing values leadership, and less aware of “relating to people” dimension of competing values leadership.
2. Junior high school teachers in Taipei were better aware of “engaged behavior” and “supportive behavior,” but less aware of “frustrated behavior” and “directive behavior.”
3. Taipei’s junior high school teachers’ identification with “female principals” competing values leadership and organizational climates in schools are higher.
4. Junior high school teachers in Taipei feel that the principals in their age of 51-55 perform better in principals’ competing values leadership and organizational climate in schools.
5. Junior high schools of principals with doctorial degree perform better than principals with degree of bachelor or degree of forty credits in organizational climates.
6.Among Taipei junior high school teachers’ perception of organizational climates, male teachers’ perception of “frustrated behavior” is higher than female teachers’; teaches with age above 51 were most aware of “supportive behavior” and “engaged behavior,” and teacher with age below 30 were most aware of “directive behavior.”
7.Teachers’ with master and doctoral degree were most aware of “frustrated behavior,” teachers’ serve more than 21 years were most aware of “engaged behavior,” and teachers’ serve less then 10 years were most aware of “directive behavior.”
8. Teacher’s perception of organizational climate are differ from their different positions. The teachers serve as directors were most aware of “supportive behavior”, the teachers serve as section chiefs are most aware of “frustrated behavior.”
9. The different dimensions of principal’s competing values leadership behavior could well predict openness index in junior high schools; therefore, the principals’ competing values leadership could positively affect organizational climate in schools.
Key words: competing values leadership, organizational climate
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