نتایج جستجو برای: selected through multistage cluster sampling
تعداد نتایج: 1991190 فیلتر نتایج به سال:
خشونت در مدرسه: نقش توانایی همدلی، مهارتهای ارتباطی و حل تعارض در کاهش رفتارهای خشونتآمیز نوجوانان
Objective This study was carried out to investigate the role of empathy, communication skills and conflict resolution in reducing adolescents' aggressive behavior. Methods This experimental study used a pretest/ posttest design with a control group. The study population included male high school students in Hamedan and Tehran cities, Iran. The sampling in the first step was done through multi...
Feedforward neural network models are created for prediction of daily heating energy consumption of a NTNU university campus Gløshaugen using actual measured data for training and testing. Improvement of prediction accuracy is proposed by using neural network ensemble. Previously trained feed-forward neural networks are first separated into clusters, using k-means algorithm, and then the best n...
introduction: one of the main determinants of adolescents’ life satisfaction is parenting skills. due to the lack of educational trials in this field, this research was done to evaluate the effect of a parenting education program on girls’ life satisfaction in governmental guidance schools of shiraz city. methods: this study is aneducational randomized controlled trial. at first, 152 female stu...
BACKGROUND The latest WHO report indicates that refractive errors are the leading cause of visual impairment throughout the world. The aim of this study was to determine the prevalence of myopia, hyperopia, and astigmatism in 7 yr old children in Iran. METHODS In a cross-sectional study in 2013 with multistage cluster sampling, first graders were randomly selected from 8 cities in Iran. All c...
Introduction: Rhinoplasty is a popular cosmetic surgical procedure. Informal statistics show that Iran has one of the highest rates of rhinoplasty in the world. However, rhinoplasty like any other surgery can have complications. Materials and Methods: In this cross-sectional study, 320 female students were selected by multistage cluster-stratified sampling from high schools in Kerman, Iran...
This study aimed to investigate the relationship between cognitive distortions with married women teachers’ marital quality in the of Kermanshah city. The study population consisted of all married women teachers in Kermanshah was in 1395 that the number of samples of 150 persons were selected by multistage cluster sampling. To collect data from marital quality scale revised form (RDAS) an...
Abstract The aim of this study was to investigate the relationship between cognitive strategies and academic achievement among high school students in the fields of humanities, science and math – physics from Shahrekord city in the school year 89-90. The research was correlational and the statistical population included all high school students from Shahrekord city, among them 222 student...
The aim of present research was to investigate the role of cognitive emotion regulation and masculine-feminine sex-role preferences in adolescent girls' aggression. In a cross-sectional study were selected 509 girl students by multistage cluster sampling and each of them responded to the Bem sex role inventory (BSRI), Garnefski cognitive emotion regulation questionnaire (CERQ) and Ahvaz Aggre...
In this research, the role of family communication orientation, teacher-student interaction and personality traits in predicting the happiness of students investigated. The participants of the research were 224 male and female high school students in Shiraz who were selected by multistage cluster random sampling. The tools used in the research include the Oxford Happiness Scale (1991), the Fam...
PURPOSE To evaluate the prevalence of pterygium and its determinants in the underserved, rural population of Iran. METHODS In this cross-sectional study of 3851 selected individuals, 86.5% participated in the study, and the prevalence of pterygium was evaluated in 3312 participants. A number of villages were selected from the north and south of Iran using multistage cluster sampling. Pterygiu...
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