نتایج جستجو برای: risk of bias

تعداد نتایج: 21278371  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

پایان نامه :0 1392

it is definitely necessary to understand the concept and behavior of causation of life insurance policies and its determinants for insurance managers, regulators, and customers. for insurance managers, the profitability and liquidity of insurers can be increasingly influenced by the number of causation through costs, adverse selection, and cash surrender values. therefore, causation is a materi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مدیریت و اقتصاد 1392

these days, all department stores make an effort to provide their clients with valuable products in order to project the best image for them. as a result, clients’ comprehension risk will decrease and they will be more willing to repurchase. having a good image is really important for the department stores because it makes an impression on clients’ comprehension of both quality and risk. consid...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1392

while performance-based language assessment has led to an increased authenticity and content validity in the practice of writing assessment, the reliability of ratings has become a major issue. research findings have shown different reactions by native english speaker (nes) and non-native english speaker (nns) teachers to students’ writings. the focus of this study is on investigating whether i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

طوقیان چهارسوقی, نرگس, عبدلی, سامره, محمدی, مینا,

Background & Objectives: Randomized controlled trials are the most reliable type of study to be able to compare different interventions in scientific research. The introduction of bias into the design and conduct of randomized controlled trials can seriously affect the accuracy of the results and led to the results be invalid. The aim of this study was to assess the bias in randomized controlle...

Journal: :international journal of health policy and management 2014
thomas harder

decisions in healthcare should be based on information obtained according to the principles of evidence-based medicine (ebm). an increasing number of systematic reviews are published which summarize the results of prevalence studies. interpretation of the results of these reviews should be accompanied by an appraisal of the methodological quality of the included data and studies. the critical a...

Journal: :international journal of high risk behaviors and addiction 0
marianna masiero department of health sciences, university of milan, milan, italy; applied research unit for cognitive and psychological science, european institute of oncology, milan, italy; department of health sciences, university of milan, p. o. box: 20123, milan, italy. tel: +39-0250321228, fax: +39-0250321240 claudio lucchiari department of health sciences, university of milan, milan, italy; applied research unit for cognitive and psychological science, european institute of oncology, milan, italy gabriella pravettoni department of health sciences, university of milan, milan, italy; applied research unit for cognitive and psychological science, european institute of oncology, milan, italy

background several empirical studies have shown the attitude of smokers to formulate judgments based on distortion in the risk perception. this alteration is produced by the activation of the optimistic bias characterized by a set of the unrealistic beliefs compared to the outcomes of their behavior. this bias exposes individuals to adopt lifestyles potentially dangerous for their health, under...

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