Concepedia

Robert D. Tortora

RD

Statistics

Publications

11

Citations

1.8K

H-Index

11

Active since

1978

Affiliations

Washington State University(Current)

Robert D. Tortora is an author at Washington State University specializing in survey methodology, statistics, and engineering.

Top concepts

StatisticsSurvey MethodologyEngineeringCommunicationStatistical InferencePublic HealthSocial SciencesUser ExperienceCultureBusiness

Publications per year

1978–2016

11

Publications

11

Response rate and measurement differences in mixed-mode surveys using mail, telephone, interactive voice response (IVR) and the Internet

Don A. Dillman, Glenn Phelps, Robert D. Tortora et al. · Social Science Research · 2008 · 844 citations

Survey (Human Research), Engineering, Online Experiment +9

Principles for Constructing Web Surveys

Don A. Dillman, Robert D. Tortora, Dennis Bowker · 1998 · 297 citations

Sampling: Design and Analysis

Robert D. Tortora · Journal of Quality Technology · 2000 · 149 citations

Engineering, Sampling Technique, Sampling Theory +5

A Note on Sample Size Estimation for Multinomial Populations

Robert D. Tortora · The American Statistician · 1978 · 114 citations

Multinomial Population, Medicine, Sampling Technique +11

People In Sub-Saharan Africa Rate Their Health And Health Care Among The Lowest In The World

Angus Deaton, Robert D. Tortora · Health Affairs · 2015 · 106 citations · Full text

Healthcare Provision, Global Health Program, Health Inequality +14

1–5 of 11