Web Survey Bibliography
The share of households without a landline phone, but aving at least one cell phone, is steadily growing, and so is evidence of corresponding non-coverage bias in landline surveys. Consequently, surveys increasingly use dual frame sampling, typically with a landline share of 60-80%. The aim of this paper is to find the optimal value of this share (i.e. mixture parameter), while considering survey error and costs.
For this purpose, the target population is divided into five strata, according to possession and availability of landlines and cell phones. Next, by optimizing the product of costs and the mean squared error across strata, we get the analytical solution (a 4th order polynomial). Finally, this approach is illustrated in eight countries with a 2008 Flash Eurobarometer dual frame survey. The questions cover various socioeconomic and political issues: the support of the EU and its currency; attitudes toward economic reforms; and evaluations of household income fluctuations. The optimal mixture parameter is estimated for different variables, countries, sources of population data, and cost options. The solution depends on the landline-cell phone cost ratio. However, it generally lies in a relatively flat optimal area, from 30-70%. Surprisingly, the results are almost invariant to variables, while linear regression (using strata weights and cost ratio) gives excellent prediction of the analytical solution. In countries where the share of the cell-only segment is not very high (less than 25%), it is optimal to have more landline units, and vice versa: where the cell-only segment is larger a predominately cell sample is optimal. However, this connection can be affected by changes in cost ratio, which is the most important factor in determining the optimal design allocation. When the cost of cell interviews is very high in relation to landline phone interviews, taking more landline units is optimal in all countries.
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Web survey bibliography - Slovenia (48)
- Overview: Online Surveys; 2017; Vehovar, V.; Lozar Manfreda, K.
- Introduction Breakoffs, Questionnaire Breakoffs and Web Questionnaire Length: A Metastudy ; 2016; Cehovin, G.; Vehovar, V.
- Web Surveys Versus Other Survey Modes: An Updated Meta-analysis Comparing Response Rates ; 2016; Wengrzik, J.; Bosnjak, M.; Lozar Manfreda, K.
- Investigating respondent multitasking in web surveys using paradata; 2016; Sendelbah, A.; Vehovar, V.; Slavec, A.; Petrovcic, A.
- The effect of email invitation elements on response rate in a web survey within an online community; 2016; Petrovcic, A.; Petric, G.; Lozar Manfreda, K.
- Identifying and correcting question-wording problems: the case of Wageindicator; 2015; Slavec, A., Vehovar, V., Tijdens, K. G.
- e-Social Science Perspective on Survey Process: Towards an Integrated Web Questionnaire Development...; 2015; Vehovar, V., Petrovcic, A., Slavec, A.
- Questionnaire length and breakoffs in web surveys: a meta study; 2014; Vehovar, V., Cehovin, G.
- Differences in intrapersonal and interactional empowerment between lurkers and posters in health-related...; 2014; Petrovcic, A., Petric, G.
- About the Institute of Public Health - Data aspect; 2013; Zaletel, M.
- The effect of email invitation characteristics and response reluctance on non-response in web forum...; 2013; Petrovcic, A., Lozar Manfreda, K., Petric, G.
- Different approaches to measure ego-centered social support networks: a meta-analysis; 2013; Hlebec, V., Kogovsek, T.
- Exploring patterns of academic usage: A Google Scholar based study of ESS, EVS, WVS and ISSP academic...; 2013; Malnar, B.
- Data quality of questions sensitive to social-desirability bias in web surveys; 2012; Lozar Manfreda, K., Zajc, N., Berzelak, N., Vehovar, V.
- WebSM Study: Survey software features overview ; 2012; Vehovar, V., Cehovin, G., Kavcic, L., Lenar, J.
- Costs and Errors in Fixed and Mobile Phone Surveys; 2012; Vehovar, V., Slavec, A., Berzelak, N.
- Impact of Fixed Choice Design on Blockmodeling Outcomes; 2012; Znidarsic, A.
- Web Survey Software; 2012; Berzelak, N., Vehovar, V., Slavec, A.
- Surveying general population: What types of experiments are further needed?; 2012; Vehovar, V., Berzelak, N.
- Research design for studying online communities with web surveys; 2012; Petrovcic, A., Petric, G., Lozar Manfreda, K.
- Effect of different stimulus on data quality in online panels; 2012; Zagar, S., Lozar Manfreda, K.
- Web panels in Slovenia; 2012; Lenar, J., Vehovar, V.
- Adaptation of Cognitive Interviews for Web; 2012; Mohorko, A., Hlebec, V.
- Current Projects at University of Ljubljana; 2011; Lozar Manfreda, K.
- Web survey software; 2011; Slavec, A., Berzelak, N., Vehovar, V.
- Web Survey Process within the Concept of eSocial Sciences; 2011; Vehovar, V.
- The Impact of Non-Response Treatments on the Stability of Blockmodels; 2011; Znidarsic, A., Ferligoj, A., Doreian, P.
- The influence of Social Support and Personal Networks on Doctoral Student Performance; 2011; Hlebec, V., Kogovsek, T., Ferligoj, A.
- From Busy Bees to Science Geeks and Party Animals: A Typology of Slovenian Doctoral Students; 2011; Hlebec, V., Kogovsek, T., Ferligoj, A.
- PhD Students’ Research Group Social Capital in Two Countries: A Clustering Approach with Duocentred...; 2011; Coenders, G., Coromina, L., Ferligoj, A., Guia, J.
- Optimization of dual frame telephone survey designs; 2011; Slavec, A., Vehovar, V.
- Nonresponse in Web Surveys ; 2011; Lozar Manfreda, K., Berzelak, N., Vehovar, V.
- Archiving and Re-using Qualitative and Qualitative Longitudinal Data in Slovenia; 2010; Stebe, J., Hudales, J., Kragelj, B.
- National readership surveys: Moving from probability face-to-face surveys to Internet panels; 2009; Vehovar, V., Slavec, A., Petric, I., Sargac, M.
- Relations between functionality and usability of Web survey software tools: An empirical evaluation; 2009; Berzelak, N., Lozar Manfreda, K.
- Optimising survey costs in mixed mode environment; 2009; Vehovar, V., Berzelak, N., Lozar Manfreda, K., Belak, E.
- Effectiveness of incentives in web surveys within mixed-mode systems: An evaluation of errors & costs...; 2009; Lozar Manfreda, K.
- "Mobile phone surveys in mixed mode environment: Balancing costs and errors"; 2009; Vehovar, V.
- Mobile phone surveys in mixed mode environment; 2009; Vehovar, V.
- What Can We Achieve With 5 Euros? Optimization of Survey Data Quality Using Mixed-Mode Approaches; 2008; Berzelak, N., Vehovar, V., Lozar Manfreda, K.
- Measuring ties on online forums; 2008; Ziberna, A., Vehovar, V., Jakulin, A.
- Integration of the web into survey data collection: Balancing costs and errors; 2008; Vehovar, V., Berzelak, N., Lozar Manfreda, K.
- Measuring ego-centered social networks on the web: Questionnaire design issues ; 2008; Vehovar, V., Lozar Manfreda, K., Koren, G., Hlebec, V.
- Collecting Data on Ego-Centered Social Networks on the Web: Methodological Issues; 2004; Lozar Manfreda, K., Vehovar, V., Hlebec, V.
- Nonresponse in Web Surveys; 2002; Vehovar, V., Lozar Manfreda, K., , Batagelj, Z.
- Web survey errors; 2001; Lozar Manfreda, K.
- Virtual Selves and Web Surveys; 2001; Lozar Manfreda, K., Couper, M. P., Vohar, M., Rivas, S., Vehovar, V.
- Internet v Sloveniji - Projekt RIS 1996-1998.; 1998; Vehovar, V.