Extending cluster lot quality assurance sampling designs for surveillance programs
نویسندگان
چکیده
منابع مشابه
Choosing a Cluster Sampling Design for Lot Quality Assurance Sampling Surveys
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...
متن کاملCommentary: Understanding practical lot quality assurance sampling.
Lot Quality Assurance Sampling (LQAS) is a statistical method emanating from the brilliant work of Dodge and Romig, which, together with that of Shewhart, developed into what is known today as Statistical Quality Control. Since the 1980s, LQAS has transitioned into the health sciences and has gained considerable appeal in a wide range of applications. We disagree with the statement in the obloq...
متن کاملCluster designs to assess the prevalence of acute malnutrition by lot quality assurance sampling: a validation study by computer simulation
Traditional lot quality assurance sampling (LQAS) methods require simple random sampling to guarantee valid results. However, cluster sampling has been proposed to reduce the number of random starting points. This study uses simulations to examine the classification error of two such designs, a 67x3 (67 clusters of three observations) and a 33x6 (33 clusters of six observations) sampling scheme...
متن کاملCommentary: learning to love lot quality assurance sampling.
1 Mason JB. Lessons on nutrition of displaced people. J Nutr 2002;132:2096S–2103S. 2 World Health Organization (WHO). Management of Nutrition in Major Emergencies. Geneva: World Health Organization, 2000. 3 World Health Organization (WHO). Physical status: the use and interpretation of anthropometry. Report of a WHO expert committee. Geneva: World Health Organization, 1995. 4 University of Nair...
متن کاملquality assessement of ante-natal care using the method of lot quality assurance sampling
to determine the coverage rate, timeliness and quality of ante-natal care in rural areas under the coverage of health houses in west azerbaijan province, 30 health houses (hh) were randomly selected out of 731 hh in the province. in each hh, using the method of lot quality assurance sampling (lqas) 28 women having recently born babies was selected. data were collected using check-list for facil...
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ژورنال
عنوان ژورنال: Statistics in Medicine
سال: 2014
ISSN: 0277-6715
DOI: 10.1002/sim.6145