Increasing participation rates and data quality in e-mail survey. An experimental design of research

2020 ◽  
pp. 45-68
Author(s):  
Alessandra Decataldo ◽  
Federico Denti ◽  
Andrea Amico
2018 ◽  
Vol 37 (6) ◽  
pp. 750-765 ◽  
Author(s):  
Joseph W. Sakshaug ◽  
Basha Vicari ◽  
Mick P. Couper

Identifying strategies that maximize participation rates in population-based web surveys is of critical interest to survey researchers. While much of this interest has focused on surveys of persons and households, there is a growing interest in surveys of establishments. However, there is a lack of experimental evidence on strategies for optimizing participation rates in web surveys of establishments. To address this research gap, we conducted a contact mode experiment in which establishments selected to participate in a web survey were randomized to receive the survey invitation with login details and subsequent reminder using a fully crossed sequence of paper and e-mail contacts. We find that a paper invitation followed by a paper reminder achieves the highest response rate and smallest aggregate nonresponse bias across all-possible paper/e-mail contact sequences, but a close runner-up was the e-mail invitation and paper reminder sequence which achieved a similarly high response rate and low aggregate nonresponse bias at about half the per-respondent cost. Following up undeliverable e-mail invitations with supplementary paper contacts yielded further reductions in nonresponse bias and costs. Finally, for establishments without an available e-mail address, we show that enclosing an e-mail address request form with a prenotification letter is not effective from a response rate, nonresponse bias, and cost perspective.


2005 ◽  
Vol 39 (11) ◽  
pp. 1897-1902 ◽  
Author(s):  
Masha SH Lam

OBJECTIVE To review the clinical evidence for routine use of bleomycin test dosing. DATA SOURCES English-language review articles, references from retrieved articles, case reports, and clinical trials were identified from a MEDLINE literature search (1966–July 2005). Key search terms included bleomycin, test dose, anaphylactic reactions, and hypersensitivity. Information from an unpublished E-mail survey, the manufacturer, and the Internet was also used. DATA SYNTHESIS Early clinical trials and isolated case reports suggest that bleomycin-induced acute hypersensitivity reactions occur in 1% of patients with lymphoma and <0.5% of those with solid tumors. The reactions are mainly characterized by high-grade fever, chills, hypotension, and in a few cases, cardiovascular collapse, which can lead to death. The exact mechanism of these reactions is unclear, but is thought to be related to the release of endogenous pyrogens from the host cells. Evidence does not suggest any correlation between doses and the onset or severity of the reactions. Supportive care, including hydration, steroids, antipyretics, and antihistamines, may resolve the symptoms. However, it may not completely prevent recurrences. CONCLUSIONS The incidence of acute hypersensitivity or hyperpyrexic reactions associated with bleomycin is very low, but the reaction is potentially fatal. Clinicians should monitor their patients for any signs and symptoms of acute hyperpyrexic reactions during bleomycin administration. Since the onset of the reactions can occur with any dose of bleomycin and at any time, routine test dosing does not seem to predict when drug reactions may occur.


2021 ◽  
pp. 8-17
Author(s):  
Amer Ramadan ◽  

This paper reports on an in-depth examination of the impact of the backing filesystems to Docker performance in the context of Linux container-based virtualization. The experimental design was a 3x3x4 arrangement, i.e., we considered three different numbers of Docker containers, three filesystems (Ext4, XFS and Btrfs), and four application workloads related to Web server I/O activity, e-mail server I/O activity, file server I/O activity and random file access I/O activity, respectively. The experimental results indicate that Ext4 is the most optimal filesystem, among the considered filesystems, for the considered experimental settings. In addition, the XFS filesystem is not suitable for workloads that are dominated by synchronous random write components (e.g., characteristical for mail workload), while the Btrfs filesystem is not suitable for workloads dominated by random write and sequential write components (e.g., file server workload).


Author(s):  
A. S. A. Du Toit

Using competitive intelligence (CI) can help developing countries to increase their competitiveness. This paper compares the CI activities between two retail banks in Brazil and South Africa. An e-mail survey in a sample of 2550 employees in a retail bank in Brazil and 847 employees in a retail bank in South Africa was carried out in which CI practices were measured. Respondents in both countries were not very effective to conduct effective CI analysis. Respondents from Brazil consider information on operational risks as the most important while for South African respondents the most important information was on changing regulatory requirements. Although there is a culture of competitiveness in both organizations, it is recommended that if they want to compete effectively in the global economy, they should create CI awareness by organizing CI training sessions for employees.


2009 ◽  
Vol 24 (2) ◽  
pp. 163-171 ◽  
Author(s):  
Peter Gass ◽  
Marina Martini ◽  
Michael Witthöft ◽  
Josef Bailer ◽  
Harald Dressing

Certain professionals, such as health care personnel, have a higher risk of stalking victimization because of their professional activities. This study analyzed the lifetime prevalence of stalking victimization for journalists because they belong to a professional group that often works in public, demonstrates personal attitudes and opinions, and thus may easily become objects for positive or negative transferences. Four hundred and ninety-three journalists answered a standardized Internet questionnaire on stalking victimization. Twelve percent of respondents reported common stalking due to nonprofessional reasons, and an additional 2.2% reported apparently job-related stalking. In contrast to common stalking, job-related stalking victims were mostly male and took the perpetration less seriously, although they had the same risk of suffering violence and aggressive attacks. Since stalking can cause severe psychological distress in victims and some cases are at high risk for aggressive violence, better information for this professional group is necessary. Primary and secondary preventive strategies should be considered.


2008 ◽  
Vol 2 (1) ◽  
pp. 94-103
Author(s):  
Leslie A. McCallister ◽  
Bobette Otto

What techniques effectively and consistently impact response rates to a mail survey? No clear answer to this question exists, largely because variability in response rates occurs depending on the population of interest, questionnaire type, and procedures used by researchers. This article examines the impact of e-mail and postcard prenotification on response rates to a mail survey by using a population of university full-time faculty and staff. Comparisons were made among respondents who received a postcard prenotification, those who received an e-mail prenotification, and those who received no prenotification prior to the initial mailing of a questionnaire. Data show that e-mail prenotification had the largest impact on response rate, while postcard prenotification had the least impact. In addition, the use of e-mail prenotification reduced overall project costs (both time and money). We suggest that the uses and applicability of e-mail prenotification be further explored to examine both its initial and overall impact on response rate in populations utilizing an electronic environment.


First Monday ◽  
2005 ◽  
Author(s):  
Elaine Peterson

This article describes how snowball sampling was applied in two different cases to evaluate digital collections. The first digital library was evaluated by conducting in–person interviews with survey participants. For the second digital library, an e–mail survey was mailed to site users. The results are compared and a cost–benefit analysis is provided. The author concludes that the convenience of an e–mail survey is not necessarily the most effective way to survey users.


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