نتایج جستجو برای: observational method

تعداد نتایج: 1720557  

2014
M. Zare S. Biau M. Croq Y. Roquelaure

A wide variety of observational methods have been developed to evaluate the ergonomic workloads in manufacturing. However, the precision and accuracy of these methods remain a subject of debate. The aims of this study were to develop biomechanical methods to evaluate ergonomic workloads and to compare them with observational methods. Two observational methods, i.e. SCANIA Ergonomic Standard (SE...

تاجیک, پروین, رضایی, محسن, صالحی, علیرضا, صحت, مجتبی, هلاکویی نایینی, کورش, پورالعجل, جلال, یزدی زاده, بهاره,

Background & Objectives: Observational studies are not often reported in detail and clear enough, so that assessment of the strengths and weaknesses of these studies is not straightforward. To improve the reporting of observational studies, a checklist of items called ‘Strengthening the Reporting of Observational Studies in Epidemiology’ (STROBE) was developed by some experts in October 2007. T...

2003
Paul R. Rosenbaum

By slightly reframing the concept of covariance adjustment in randomized experiments, a method of exact permutation inference is derived that is entirely free of distributional assumptions and uses the random assignment of treatments as the “reasoned basis for inference.” This method of exact permutation inference may be used with many forms of covariance adjustment, including robust regression...

توکلی, معصومه, معتمدزاده, مجید, مقیم بیگی, عباس, گلمحمدی, رستم,

Background & Objectives: Assessment of physical risk factors related to musculoskeletal disorders is performed by different methods including observational methods. Validity of these methods are important in workplaces. The purpose of this study was to investigate the reliability of the Washington States ergonomics checklist as an observational method. Methods: This descriptive-analytic...

Tahmasebi Boroojeni, Shahzad, Tarshizi Bargooei, Sajjad,

Observing a model let learners to make a plan of action that can be used for learning motor skills. Moreover, self-talk is a conversation that performers use it either apparently or secretly in order to think about their performance and reinforce it. Therefore, the purpose   of this study was to investigate the effect of observational learning, self-talk and combination of both on boy’s perform...

Journal: :iranian journal of management studies 2011
ali asghar pourezzat parvaneh zeinali someh

observation of justice is one of the most important indexes influencing satisfaction of the personnel of an organization so that perceiving injustice will result in the personnel dissatisfaction thereby leaving negative influence on their performance [38]. this situation also influences the customers’ satisfaction in the service organizations where the personnel have direct and face-to-face con...

2011
S. Khan M. Ponomareva E. Tamer

We study inference on parameters in censored panel data models, where the censoring can depend on both observable and unobservable variables in arbitrary ways. Under some general conditions, we characterize the information the model and data contain about the parameters of interest by deriving the identified sets, meaning that every parameter which belongs to these sets is observationally equiv...

2007
Michael Harrison Jean Jacod Tom Kurtz Ruth Williams Chenghu Ma

It may be downloaded, printed and reproduced only for personal or classroom use. Absolutely no downloading or copying may be done for, or on behalf of, any for‐profit commercial firm or other commercial purpose without the explicit permission of the Econometric Society. For this purpose, contact Claire Sashi, General Manager, at [email protected]. This paper presents a stochastic dif...

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