Robert D. Tortora

1.9k total citations · 1 hit paper
19 papers, 1.2k citations indexed

About

Robert D. Tortora is a scholar working on Statistics and Probability, Sociology and Political Science and Health. According to data from OpenAlex, Robert D. Tortora has authored 19 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Statistics and Probability, 5 papers in Sociology and Political Science and 2 papers in Health. Recurrent topics in Robert D. Tortora's work include Survey Methodology and Nonresponse (5 papers), Focus Groups and Qualitative Methods (3 papers) and Statistical Methods and Bayesian Inference (2 papers). Robert D. Tortora is often cited by papers focused on Survey Methodology and Nonresponse (5 papers), Focus Groups and Qualitative Methods (3 papers) and Statistical Methods and Bayesian Inference (2 papers). Robert D. Tortora collaborates with scholars based in United States, Cyprus and Italy. Robert D. Tortora's co-authors include Don A. Dillman, Benjamin L. Messer, Karen Swift, Angus Deaton, James Bird, G. David Faulkenberry, Jake Kendall, Giangiacomo Gerla, Frederic A. Vogel and Vijay K. Rohatgi and has published in prestigious journals such as Biometrics, Fuzzy Sets and Systems and Health Affairs.

In The Last Decade

Robert D. Tortora

18 papers receiving 1.0k citations

Hit Papers

Response rate and measurement differences in mixed-mode s... 2008 2026 2014 2020 2008 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Response rate and measurement differences in mixed-mode surveys using mail, telephone, interactive voice response (IVR) and the Internet
    2008 560 citations Don A. Dillman, Robert D. Tortora et al. Social Science Research profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Robert D. Tortora United States 10 453 159 155 113 112 19 1.2k
J Lessler United States 14 423 0.9× 291 1.8× 153 1.0× 73 0.6× 103 0.9× 22 1.2k
Ronald Czaja United States 15 456 1.0× 373 2.3× 124 0.8× 125 1.1× 65 0.6× 22 1.6k
D. A. Dillman United States 14 906 2.0× 153 1.0× 197 1.3× 77 0.7× 126 1.1× 17 1.4k
Johnny Blair United States 17 606 1.3× 292 1.8× 153 1.0× 185 1.6× 60 0.5× 31 1.7k
Benjamin L. Messer United States 4 431 1.0× 95 0.6× 139 0.9× 49 0.4× 78 0.7× 5 788
Nancy A. Mathiowetz United States 15 724 1.6× 323 2.0× 345 2.2× 82 0.7× 245 2.2× 35 1.6k
G. David Faulkenberry United States 10 633 1.4× 154 1.0× 267 1.7× 86 0.8× 388 3.5× 21 1.5k
Emilia Peytcheva United States 8 633 1.4× 264 1.7× 308 2.0× 75 0.7× 181 1.6× 14 1.2k
Jelke Bethlehem Netherlands 16 900 2.0× 200 1.3× 349 2.3× 136 1.2× 338 3.0× 44 2.0k
Mario Callegaro United States 17 926 2.0× 163 1.0× 190 1.2× 78 0.7× 118 1.1× 51 1.6k

Countries citing papers authored by Robert D. Tortora

Since Specialization
Citations

This map shows the geographic impact of Robert D. Tortora's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Robert D. Tortora with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert D. Tortora more than expected).

Fields of papers citing papers by Robert D. Tortora

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert D. Tortora. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Robert D. Tortora. The network helps show where Robert D. Tortora may publish in the future.

Co-authorship network of co-authors of Robert D. Tortora

This figure shows the co-authorship network connecting the top 25 collaborators of Robert D. Tortora. A scholar is included among the top collaborators of Robert D. Tortora based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Robert D. Tortora. Robert D. Tortora is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

19 of 19 papers shown
1.
Miller, Eric A., Lewis E. Berman, Audie A. Atienza, et al.. (2017). A Feasibility Study on Using an Internet-Panel Survey to Measure Perceptions of E-cigarettes in 3 Metropolitan Areas, 2015. Public Health Reports. 132(3). 336–342. 6 indexed citations
2.
Tortora, Robert D., et al.. (2016). International Determinants of Subjective Well-Being: Living in a Subjectively Material World. Journal of Happiness Studies. 19(1). 123–143. 49 indexed citations
3.
Deaton, Angus & Robert D. Tortora. (2015). People In Sub-Saharan Africa Rate Their Health And Health Care Among The Lowest In The World. Health Affairs. 34(3). 519–527. 64 indexed citations
4.
Kendall, Jake, et al.. (2012). Payments and Money Transfer Behavior of Sub-Saharan Africans. SSRN Electronic Journal. 11 indexed citations
5.
Dillman, Don A., et al.. (2008). Response rate and measurement differences in mixed-mode surveys using mail, telephone, interactive voice response (IVR) and the Internet. Social Science Research. 38(1). 1–18. 560 indexed citations breakdown →
6.
Tortora, Robert D.. (2004). Response trends in a national random digit dial survey. 1(1). 21–32. 12 indexed citations
7.
Tortora, Robert D.. (2000). Sampling: Design and Analysis. Journal of Quality Technology. 32(4). 469–470. 117 indexed citations
8.
Dillman, Don A., et al.. (1999). INFLUENCE OF PLAIN VS. FANCY DESIGN ON RESPONSE RATES FOR WEB SURVEYS. 64 indexed citations
9.
Dillman, Don A., et al.. (1998). Principles for Constructing Web Surveys. 175 indexed citations
10.
Wallman, Katherine K., Thomas J. Boardman, William Hill, Jerome Sacks, & Robert D. Tortora. (1988). Establishing an Office of Scientific and Public Affairs. The American Statistician. 42(4). 245–248. 1 indexed citations
11.
Tortora, Robert D., et al.. (1986). Sampling frames for agriculture in the United States [area frame, list frame, dual frame, NASS, National Agricutural Statistics Service].. Journal of Official Statistics. 7 indexed citations
12.
Tortora, Robert D., et al.. (1986). Area Frame Estimators in Agricultural Surveys: Sampling Versus Nonsampling Errors. Agricultural economics research. 38(2). 1–10. 7 indexed citations
13.
Gerla, Giangiacomo & Robert D. Tortora. (1985). Normalization of fuzzy algebras. Fuzzy Sets and Systems. 17(1). 73–82. 4 indexed citations
14.
Faulkenberry, G. David & Robert D. Tortora. (1979). A Study of Measurement Error Suitable for a Classroom Example. The American Statistician. 33(1). 19–22. 4 indexed citations
15.
Faulkenberry, G. David & Robert D. Tortora. (1979). A Study of Measurement Error Suitable for a Classroom Example. The American Statistician. 33(1). 19–19. 1 indexed citations
16.
Tortora, Robert D.. (1978). A Note on Sample Size Estimation for Multinomial Populations. The American Statistician. 32(3). 100–102. 87 indexed citations
17.
Tortora, Robert D., et al.. (1978). A Consulting Aid to Sample Design. Biometrics. 34(2). 299–299. 2 indexed citations
18.
Tortora, Robert D.. (1978). A Note on Sample Size Estimation for Multinomial Populations. The American Statistician. 32(3). 100–100. 19 indexed citations
19.
Rohatgi, Vijay K. & Robert D. Tortora. (1976). Estimation of the Common Mean of a Bivariate Normal Distribution when the Mean is known to be Non‐negative. Biometrische Zeitschrift. 18(7). 555–561. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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