نتایج جستجو برای: iran using stratified random sampling technique

تعداد نتایج: 4067547  

Journal: :iranian red crescent medical journal 0
fatemeh rahmati-najarkolaei health research center, baqiyatallah university of medical sciences, tehran, ir iran parvin rahnama department of midwifery, faculty of nursing and midwifery, shahed university, tehran, ir iran mohammad gholami fesharaki biostatistics department, faculty of medical sciences, tarbiat modares university, tehran, ir iran vahid behnood young researchers and elite club, karaj branch, islamic azad university, karaj, ir iran; baqiyatallah university of medical sciences, tehran, ir iran; baqiyatallah university of medical sciences, p. o. box: 193955487, tehran, ir iran. tel: +98-2182482469, fax: +98-2188600062

conclusions the current study provided evidence for the utility of the belief-based model in the prediction of oral health behaviors. it could be suggested that oral health behavior can be promoted by reducing the perceived barriers and enhancing the students’ knowledge of oral and dental hygiene. background oral and dental health diseases can affect the general health of students. objectives t...

Journal: :Philosophy of Science 2022

Abstract Simple random-sampling resolutions of the raven paradox relevantly diverge from scientific practice. We develop a stratified model, yielding better fit and apparently rehabilitating simple random sampling as legitimate idealization. However, neither accommodates second concern, objection potential bias. third model that crucially invokes causal considerations, novel resolution handles ...

2012

In the United States, low marriage rates and high divorce rates among the poor have led policymakers to target this group for skillsand values-based interventions. The current research evaluated the assumptions underlying these interventions; specifically, the authors examined whether low-income respondents held less traditional values toward marriage, had unrealistic standards for marriage, an...

2007
G. L. Berry TATYANA DUMOVA

The purpose of this study was to identify and evaluate prosocial content of a local children’s television series News Six produced by WBGU-TV, Bowling Green, Ohio. A stratified random sample of 114 programs (228 news stories) broadcast between 1972-2002 was coded for story setting, theme, prosocial messages, and primary message attributes. Results of a nonfrequency content analysis indicate tha...

2013
Priyanka Sharma Nisha Saini

Adjustment is one of the most important psychological activities of human being. Life is a process of adjustment. If anyone wants satisfaction in life, then one has to adjust with their environment. The present study was conducted on the students of two collegesone urban and one rural of Jammu region. The main objective of the study was to identify the adjustment problems among college going st...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

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