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Analysis of transportation and logistics processes for soybeans in Brazil
Fliehr, Olivia - Bundesforschungsinstitut für Lädliche Räume, Wald … - 2013
improve the national infrastructure, particularly in the ports in northern Brazil, could lead to large improvements in the … in Brasilien zu ermitteln, wurde eine Markt- und Kostenanalyse für vier Anbaugebiete im Sorriso-Santos-Korridor mit … auf dem Weltmarkt gehört Brasilien zu den Hauptversorgern der weltweiten Sojanachfrage. Der Einfluss von Logistik und …
Persistent link: https://www.econbiz.de/10010985835
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Features of the Z-scoring method in graphical two-dimensional web surveys: the case of ZEF
Selkälä, Arto; Ronkainen, Suvi; Alasaarela, Esko - In: Quality & Quantity: International Journal of Methodology 45 (2011) 3, pp. 609-621
Persistent link: https://www.econbiz.de/10009396906
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Estimating Propensity Adjustments for Volunteer Web Surveys
Valliant, Richard; Dever, Jill A. - In: Sociological Methods & Research 40 (2011) 1, pp. 105-137
Panels of persons who volunteer to participate in Web surveys are used to make estimates for entire populations, including persons who have no access to the Internet. One method of adjusting a volunteer sample to attempt to make it representative of a larger population involves randomly...
Persistent link: https://www.econbiz.de/10009367520
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Transforming a Paper Survey Into a Web Survey: Respondent Experiences.
Luyegu, Annette - Mathematica Policy Research - 2005
Persistent link: https://www.econbiz.de/10010556487
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An assessment of equivalence between Internet and paper-based surveys: evidence from collectivistic cultures
Fang, Jiaming; Wen, Chao; Prybutok, Victor - In: Quality & Quantity: International Journal of Methodology 48 (2014) 1, pp. 493-506
Little research exists that addresses the equivalence in collectivistic cultures of paper- versus Internet-based surveys. This study addressed this gap and examined the measurement equivalence of individual innovativeness scales between Internet surveys and paper-based surveys within a...
Persistent link: https://www.econbiz.de/10010843970
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The Net Effect: A Comparison of Internet and Mail Survey Respondents.
Friedman, Esther M.; Clusen, Nancy A.; Hartzell, Michael - Mathematica Policy Research - 2004
Multiple-mode surveys can improve response and reduce survey error and costs. Although web surveys are an increasingly popular mode of survey administration, the full effect of web data collection on a primarily mail survey is not yet fully understood. This paper details response rates for a...
Persistent link: https://www.econbiz.de/10010609749
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Are 'Webographic' or Attitudinal Questions Useful for Adjusting Estimates From Web Surveys Using Propensity Scoring?
Schonlau, Matthias; Soest, Arthur van; Kapteyn, Arie - RAND - 2007
Inference from Web surveys may be affected by non-random selection of Web survey participants. One approach to reduce selection bias is to use propensity scores and a parallel phone survey. This approach uses demographic and additional so-called Webographic or lifestyle variables to balance...
Persistent link: https://www.econbiz.de/10005729497
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Eliciting Subjective Expectations in Internet Surveys
Rohwedder, Susann; Delavande, Adeline - RAND - 2008
Individuals' subjective expectations are important in explaining heterogeneity in individual choices, but their elicitation poses challenges. In this paper, the authors present their findings from testing an innovative visual representation of an Internet survey in the context of individuals'...
Persistent link: https://www.econbiz.de/10005545508
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Use of Web and In-Person Survey Modes to Gather Data From Young Adults on Sex and Drug Use
McMorris, Barbara J.; Petrie, Renee S.; Catalano, Richard F. - In: Evaluation Review 33 (2009) 2, pp. 138-158
In a randomized test of mixed-mode data collection strategies, 386 participants in the Raising Healthy Children (RHC) Project were either (a) asked to complete a survey via the Internet and later offered the opportunity to complete the survey in person or (b) first offered an in-person survey,...
Persistent link: https://www.econbiz.de/10010802647
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An Open Source architecture to collect and analyze performance measurement data to local health authorities in the Tuscany Region
Cerasuolo, Domenico; Nuti, Sabina - Laboratorio Management e Sanità (MeS), Scuola … - 2009
The aim of this article is to present a hardware and software architecture that shows how to combine different open source technologies in order to realize an efficient system to collect and analyze data from a web survey. The framework presented has been used, in the context of the Performance...
Persistent link: https://www.econbiz.de/10008925664