نتایج جستجو برای: selected through multistage cluster sampling
تعداد نتایج: 1991190 فیلتر نتایج به سال:
The purpose of this study was investigating high school students’ learning styles in order to develop an instrument for academic guidance. The population of this study consisted of male students in three fields of science, mathematics, and humanities in high schools of Hamedan. The sample, consisted of 170 male students in grades 2 and 3 of high school in the fields of science, mathematics...
Social trust is one of the foundations for social order in society. Trust in any organization is affected by various factors such as customer satisfaction, service quality, staff skill and taking into account the customer orientation and service receivers’ satisfaction principles. This research seeks to study the sociological study of social trust of the insured population of social security or...
The purpose of this study was to explore the role that perceived childhood attachment, family functioning and attribution styles have in social anxiety of high school students. 430 Iranian students were selected by multistage cluster sampling from high schools of Isfahan city. Participants completed measures of childhood attachment to each parent (Hazen and Shaver, 1986), the family adaptabilit...
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...
Objective: This study aimed to investigate the role of psychological hardiness mediator in the relationship between religious orientation, self-concept and self-efficacy in predicting the tendency to have addiction Method: This study was a descriptive - correlational. The study sample was male students of Razi University undergraduate years 2014-2015. 358 undergraduates were selected by multist...
The aim of this study was to determine the relationship between attachment styles and happiness in the youth. The study was descriptive survey. The population of this study included all high school students in the city of Babol (n = 1373 patients), of these, 201 students through multistage random cluster sampling were selected. Data collected by Hazan and Shiver attachment styles questionnaire ...
background: mental disorder is one of the most important diseases of which is predicted to increase from 10.5% to 15% until 2020. this study aimed to determine economic factors influencing mental health using multiple regression models in ilam province in 2013. methods: in this cross sectional study, 903 families from different cities of ilam were selected using multistage cluster sampling. the...
BACKGROUND AND OBJECTIVE Referral systems are relatively easy in terms of design, but implementing them is extremely difficult. Considering the three levels of primary healthcare, access of people to specialized services through a referral system is possible. With regard to the importance of a referral system in a family physician program, this study was performed to assess the function of the ...
We describe a multivariate, multilevel, pseudo maximum likelihood estimation method for multistage stratified cluster sampling designs, including finite population and unequal probability sampling. Multilevel models can be estimated with this method while incorporating the sampling design in the standard error computation. Design based adjustment of the likelihood ratio test (LRT) statistic is ...
BACKGROUND Pelvic organ prolapse (POP) is a silent disorder with a huge impact on women's quality of life. There is limited data from community-based studies conducted to determine the prevalence of POP as its assessment needs a pelvic examination. We aimed to develop a simple screening inventory for identification of pelvic organ prolapse and then evaluate its sensitivity and specificity. ME...
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