نتایج جستجو برای: stratified random sampling method was used

تعداد نتایج: 5979659  

Journal: :CoRR 2014
Peng Luo Yongli Li Chong Wu

The sampling method has been paid much attention in the field of complex network in general and statistical physics in particular. This paper presents two new sampling methods based on the perspective that a small part of vertices with high node degree can possess the most structure information of a network. The two proposed sampling methods are efficient in sampling the nodes with high degree....

2011
S. L. Lohr

1. What is a Survey? 2. Probability sampling 3. Common probability sampling designs 3.1. Simple Random Sampling 3.2. Stratified Sampling 3.3. Cluster Sampling 3.4. Unequal Probability Sampling 3.5. Systematic Sampling 3.6. Stratified Multistage Sampling 4. Survey estimates and standard errors 5. Nonsampling errors 6. Sampling rare populations 7. Issues in Survey Design Acknowledgments Glossary ...

Journal: :Agri-Sosioekonomi (Manado) 2022

The purpose of this study is to analyze the income lowland rice farming in Tonom Village, Dumoga Timur District, Bolaang Mongondow Regency. This research was conducted for 3 months, from November 2021 January 2022. data used were primary and secondary data. sample selected using a proportional stratified random sampling method (Proportionate Stratified Random Sampling). population divided into ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و علوم انسانی 1388

the purpose of this study was to investigate how english language teachers in mashhad who teach students in the pre-university cycle perceived the impact of the efltee on their teaching. the target population was nearly all pre-university english language teachers in seven districts of mashhad in the scholastic year 2008/2009. a survey questionnaire which consisted of (36) likert type items, wa...

2017
Giles M. Foody

Validation data are often used to evaluate the performance of a trained neural network and used in the selection of a network deemed optimal for the task at-hand. Optimality is commonly assessed with a measure, such as overall classification accuracy. The latter is often calculated directly from a confusion matrix showing the counts of cases in the validation set with particular labelling prope...

Journal: :مدیریت دولتی 0
حسین دامغانیان استادیار دانشکدۀ اقتصاد، مدیریت و علوم اداری دانشگاه سمنان، ایران لاله جمشیدی استادیار دانشکدۀ روان‎شناسی و علوم تربیتی دانشگاه سمنان، ایران فرشته قلعه آقابابایی دانشجوی کارشناسی ارشدmba ، دانشگاه سمنان، ایران

nowadays, organizations are trying to maximize productivity by groups, but the results are not always completely satisfactory thereby causing some problems for organizations such as social loafing. social loafing reduces motivation and effort in team work compared to individual work. this study intends to achieve the necessary mechanisms to reduce social loafing, and reviews the effect of perce...

Journal: :پژوهشنامه کتابداری و اطلاع رسانی 0
سمیه رجبی محمد رضا کیانی محسن نوکاریزی

purpose: the aim of this study was to investigate the information poverty of post graduate students of birjand university with respect to its 4 indicators (information overload, information vacuum, information inequality, and digital divide) and the role of globalization in information poverty from their point of view. methodology: this study was a descriptive survey. the population consisted o...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم اجتماعی 1389

چکیده در این پژوهش، رابطه بین سبک های مقابله ای با جرأت ورزی و پرخاشگری در دانشجویان دانشگاه بین المللی امام خمینی (ره) بررسی شد. نمونه مورد بررسی، شامل 200 نفر (121 زن و 79 مرد) از دانشجویان دانشگاه مورد نظر در دو جنس است که از طریق روش نمونه گیری خوشه ای تصادفی، انتخاب و به پرسشنامه های الگوهای پاسخ دهی بین فردی تونند و پرسشنامه سبک های مقابله ای اندلر و پارکر پاسخ دادند. همچنین از روش های ...

Journal: :مدیریت دولتی 0
علی اصغر فانی استادیار، مدیریت منابع انسانی و رفتار سازمانی، دانشگاه تربیت مدرس، تهران، ایران فاطمه شیخی نژاد دانشجوی مدیریت رفتاری، دانشگاه تربیت مدرس، تهران، ایران حسن دانایی فرد دانشیار، خط مشی گذاری عمومی، دانشگاه علامه طباطبایی، تهران، ایران علیرضا حسن زاده استادیار، مدیریت سیستم ها، دانشگاه تربیت مدرس، تهران، ایران

the organizational activities are political, because in this context interests, power and conflict of interests exist. therefore, one of the apparent behaviors of people is political behavior. this study seeks to answer the question that what factors are causing political behavior in organization? researcher after describing the theoretical foundations, tests the process of inter-organizational...

2003
Leon J. Herbert Christine M. Wilder

We propose a method using a combination of ArcView and a GPS to accurately and effectively create and locate random sample points over large research areas. We also present a preliminary public health case study which used this method to locate sample sites in a rural area of Limpopo Province, South Africa. Both health and vegetation surveys were carried out at these sites. Although similar tec...

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