Dataset Information

A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises.

ABSTRACT: Finding an efficient method for sampling micro- and small-enterprises (MSEs) for research and statistical reporting purposes is a challenge in developing countries, where registries of MSEs are often nonexistent or outdated. This lack of a sampling frame creates an obstacle in finding a representative sample of MSEs. This study uses computer simulations to draw samples from a census of businesses and non-businesses in the Tshwane Municipality of South Africa, using three different sampling methods: the traditional probability sampling method, the compact segment sampling method, and the World Health Organization's Expanded Programme on Immunization (EPI) sampling method. Three mechanisms by which the methods could differ are tested, the proximity selection of respondents, the at-home selection of respondents, and the use of inaccurate probability weights. The results highlight the importance of revisits and accurate probability weights, but the lesser effect of proximity selection on the samples' statistical properties.

SUBMITTER: Chao LW

PROVIDER: S-EPMC3347860 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature

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A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises.

Chao Li-Wei LW Szrek Helena H Peltzer Karl K Ramlagan Shandir S Fleming Peter P Leite Rui R Magerman Jesswill J Ngwenya Godfrey B GB Pereira Nuno Sousa NS Behrman Jere J

Journal of development economics 20110906 1

Finding an efficient method for sampling micro- and small-enterprises (MSEs) for research and statistical reporting purposes is a challenge in developing countries, where registries of MSEs are often nonexistent or outdated. This lack of a sampling frame creates an obstacle in finding a representative sample of MSEs. This study uses computer simulations to draw samples from a census of businesses and non-businesses in the Tshwane Municipality of South Africa, using three different sampling metho ...[more]

PMID: 22582004

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Project description:BackgroundThe negative effect of unfavorable working conditions and long-term work stress on health has been demonstrated in previous research. To address these challenges, systematic approaches such as psychosocial risk assessments (PRA) have been developed in many countries worldwide. Despite legal obligations, psychosocial risk assessments are rarely carried out in micro and small-sized enterprises (MSE). Even though those enterprises constitute a large proportion of the general workforce, this area remains largely untouched by research. In order to enable starting points for a greater dissemination in organizational practice, the present study explores barriers and drivers of psychosocial risk assessments in micro and small-sized enterprises.MethodsA total of 18 owners and managers from 15 micro and small-sized enterprises in North-Rhine Westphalia, Germany, were interviewed. The interviews were audio-recorded, transcribed, and analyzed. A qualitative approach was applied: Content analysis was used to analyze the data, using deductive as well as inductive coding techniques.ResultsThe following barriers emerged from the interviews: Negative PRA image, stigmatization of mental health, lacking acceptance of employees, fear of excessive authority interference, ignorance of PRA, not understanding the necessity, inappropriate approach, and limited resources. The identified drivers were: Easy access to PRA material, external support from experts, renaming the term "workplace risk assessment", understanding content and benefit of PRA, simplify and revise PRA process, and noticeable consequences of PRA execution and non-execution. The results are comparable with those in larger companies. They emphasize the importance of mental health education, improving the process of psychosocial risk assessments, and the ongoing support in overcoming limited financial as well as human resources.ConclusionsTo improve implementation of PRA in organizational practice, a simplification of the process is proposed, accompanied by information campaigns and an improvement in the health literacy of owners and managers of MSE. In view of the results, the full revision of the PRA approach should also be considered.

Dataset Information

A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises.

Publications

A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises.

Similar Datasets

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