نتایج جستجو برای: selected through multistage cluster sampling
تعداد نتایج: 1991190 فیلتر نتایج به سال:
Background & Aims: The Quality of School Life (QSL) is an issue that in the recent decade has got special attention for its influential role in student's life and it is defined as the level of quality of different aspects related to the student's life in school. Since students are future managers of the society, and spend most of their life time at school, identifying the factors that can th...
aim: the aim of this study was comparing behavioral disorders in students with depressed and non-depressed mothers.methods: this case-control study was conducted among 35 (7-11 years old) children of depressed mothers as a case group and 35 children of healthy mothers as control group in ahvaz, iran, in 2015-16. the sample size was selected by multistage random cluster sampling. research tools ...
background: the association of duration of breastfeeding (bf) with weight disorders remains controversial. this study aimed to evaluate the association of bf with anthropometric measures and weight disorders in iranian children and adolescents. materials and methods: using multistage random cluster sampling method, a representative sample of 25,000 school students were selected from urban an...
effective knowledge sharing as one of the basic aspects of knowledge management can be considered as one of the most important successes in changing and complicated contexts of sport organizations. the aim of this study was to study the effects of intrinsic and extrinsic motivations on knowledge sharing in employees of physical education organizations of isfahan. the research method used descri...
Objectives: Undernutrition is a global public health challenge, especially in countries that experience extreme climate conditions and armed conflict. In Somalia, undernutrition chronic, often graded for emergency response. The purpose of this study was to provide evidence on immediate, proximate, distal risk factors the most affected region Somalia.
 Setting: Data from cross-sectional nut...
Background Obsessive-compulsive disorder (OCD) is a heterogeneous condition with distinct subtypes. This study aims to compare the severity of obsession and working memory in children with obsessive compulsive disorder and healthy children. Materials and Methods: In this correlation-comparative study, 140 st...
background medication error in hospitals is a major cause of errors, which may cause disruptions in the workflow of the health care systems. the aim of this study was to assess medication errors made by nurses and the relationship of such errors with job and demographic characteristics. material and methods this was a descriptive study on 225 nurses in various hospitals, selected through multis...
The vast majority of young people have mobile phones. This has become a must-have item in their lives, with traditional socialization spaces displaced by virtual ones. They use their mobile phones for many hours a day, to the detriment of their psychological and social functioning, showing greater vulnerability to abusive or excessive use, and more likely to become problematic or addicted users...
Socioeconomic inequalities associated with multiple disabilities have not been explored in China. This is the first study to explore changes in multiple disabilities among persons aged 15-64 years in China. Data were derived from the 1987 and 2006 China National Sample Surveys on Disability, which are nationally representative population-based surveys. Both surveys used multistage, stratified, ...
Epidemiologic Evaluation of Child Abuse and Neglect in School-Aged Children of Qazvin Province, Iran
OBJECTIVE This study was carried out to detect the prevalence of child abuse in three domains of physical, psychological and neglect among elementary school aged children of Qazvin Province, Iran. METHODS In this descriptive-analytic and cross-sectional study, 1028 elementary school aged children of Qazvin Province selected through multistage cluster sampling were assessed for child abuse in ...
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