نتایج جستجو برای: iran using stratified random sampling technique

تعداد نتایج: 4067547  

Complex situations of today's life have led to the complexity of urban life issues and not pay attention to the quality of life. Studies in this field are increasingly gaining the attention of urban planners and policymakers due to its usefulness in assessing and monitoring public policies, also they can use as effective tools in urban management and planning. This study investigated the QOL in...

2002
J.-P. Chanut B. Pelletier

INTRODUCTION The study of the distribution of any variable in marine environment generally begins by a sampling experiment. Usually, the collection of samples follows a procedure, often fixed in advance, that takes into account the general distribution of the water masses for a given region. However, much attention may be devoted to the actual structure of the water column present below the shi...

Journal: :CoRR 2018
Trong Duc Nguyen Ming-Hung Shih Divesh Srivastava Srikanta Tirthapura Bojian Xu

Stratified random sampling (SRS) is a fundamental sampling technique that provides accurate estimates for aggregate queries using a small size sample, and has been used widely for approximate query processing. A key question in SRS is how to partition a target sample size among different strata. While Neyman allocation provides a solution that minimizes the variance of an estimate using this sa...

Journal: :TEM Journal 2023

This research aims to discover students’ increase abilities, skills, and innovative behaviors after being taught using a problem-based learning model IoT-B-HMI-LM in the form of Trainer Kit. The study was conducted quantitative methods on 69 students eight teachers with electrical engineering expertise at vocational high schools East Java, Indonesia. stratified simple sampling technique used de...

Journal: :Journal of Business and Economics Research (JBE) 2022

The purpose of the study was to analyze role agility, work discipline, communication skills and intellectual intelligence on performance BPR-BKK Demak Regency employees. population in this were employees PT. BPR BKK with a total 148 people. sampling technique used proportionate stratified random sampling. Determination number samples determined by Slovin formula obtained 60 respondents. Sources...

2012
Hajar Shekarchizadeh Hamed Ekhtiari Mohammad R Khami Jorma I Virtanen

BACKGROUND Opiates are the main drugs of abuse, and Methadone Maintenance Treatment (MMT) is the most widely administered drug addiction treatment program in Iran. Our study aimed to investigate patterns of pre-treatment drug abuse, addiction treatment history and characteristics of patients in MMT in Tehran. METHODS We applied a stratified cluster random sampling technique and conducted a cr...

Journal: :Pedagogi 2022

This study aims to determine the significant influence of parental attention in learning motivation high-grade students thematic at SD Muhammadiyah Gisting academic year 2020/2021 school year. uses a quantitative approach. The population was 205 with sample 66 students. used probability sampling technique, namely proportionate stratified random sampling. data collection techniques were question...

2018
Mostafa Langarizadeh Majid Naghipour Seyed Mohsen Tabatabaei Abbas Mirzaei Mohammad Eslami Vaghar

Background A considerable group of internet users consists of university users; however, despite internet benefits and capabilities, internet overuse is a threat to societies especially to young people and students. Objective The objective of this study was to determine the predictive role of information literacy in internet addiction among students of Iran University of Medical Sciences duri...

2012
Azam Roshandel Mahboobeh Safavi

The present paper has been carried out to investigate the prevalence of eating disorders among the female students of Islamic Azad University, central Tehran branch. The subjects of this descriptive research were 400 people who were selected using Stratified Random sampling and were assessed using demographic questionnaires, EAT-26 eating observation test and diagnostic questionnaire of eating ...

Journal: :Saudi medical journal 2006
Mohammad Aghaeishahsavari Masood Noroozianavval Pegah Veisi Raziye Parizad Jahanbakhsh Samadikhah

OBJECTIVE To assess the magnitude of the problem of cardiovascular risk factors in hospitalized patients, and to establish cardiovascular disease (CVD) risk factor profiles. METHODS The study included 476 confirmed CVD patients selected by a multi stage stratified cluster random sampling technique in Tabriz Heart Center (Shaheed Madani Hospital), Tabriz, Iran from February 2004 to May 2005. A...

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