Multilevel regression with poststratification (MRP) has become widely used in political science to estimate subnational opinion from national polls. This method takes into account both demographic and state-level effects and has greatly expanded knowledge of public opinion at the subnational level. In this paper, I assess the use of MRP on two cluster-sampled polls, the American National Electi...

A weighted cluster sample survey design is frequently used in large demographic sample surveys. In the National Health Interview Survey conducted by the National Center for Health Statistics, households are often selected in clusters of four. In this survey, sociodemographic and health characteristics of all members of sample households are recorded. Such characteristics for each person intervi...

We compared 2 sampling strategies designed to estimate abundance of double-crested cormorants (Phalacrocorax auritus, hereafter cormorants) on aquaculture ponds in western Mississippi. Cormorants are a major predator of cultured channel catfi sh (Ictalurus punctatus) in this region; thus, estimating cormorant abundance is needed to better determine their economic impact. We independently design...

Lot quality assurance sampling (LQAS) surveys are commonly used for monitoring and evaluation in resource-limited settings. Recently several methods have been proposed to combine LQAS with cluster sampling for more timely and cost-effective data collection. For some of these methods, the standard binomial model can be used for constructing decision rules as the clustering can be ignored. For ot...

this research aimed to investigate the effect of brand vision and positioning on brand equity with regard to moderating role of product performance and using descriptive survey research. the population of research was marketing experts of superior brands in iran’s food industry, which chosen 148 sample of those population using stratified sampling method. data collection tool was a questionnair...

background: smoking is an important risk factor for many and may decrease quality and quantity life. this study was performed to determine the prevalence and related factors of the smoking in high school girls in kermanshah in year 2004. methods: the random- cluster sampling method was used in a descriptive–analytic designed study. 3150 girl students from three educational area of kermanshsh ci...

OBJECTIVE To report on the use of lot quality-assurance sampling (LQAS) surveys undertaken within an area-sampling framework to identify priority areas for intervention with trachoma control activities in Viet Nam. METHODS The LQAS survey method for the rapid assessment of the prevalence of active trachoma was adapted for use in Viet Nam with the aim of classifying individual communes by the ...

this inverstigation is a quasi-experimental study comparing the effects of two methods of health education on student's knowledge and attitudes about aids. the target population consisted of 218 male undergraduates studying in payame noor university in saghez, iran. a random sample of 106 students was selected using sample random sampling method. the students were randomly divided into two...