Concepedia

Sample Size

Sample Size is the number of observational or experimental units selected from a population for inclusion in a study, distinguished by its role in determining the precision, statistical power, and generalizability of research findings across domains such as bioequivalence, epidemiologic methods, experimental design, and periodontal research methods.

3.8K

Publications

484.6K

Citations

7.3K

Authors

2.4K

Institutions

Publications per year

2017–2026

495

Parents

Children

Publications

3.8K

How Many Interviews Are Enough?

Greg Guest, Arwen Bunce, Laura Johnson · Field Methods · 2005 · 19.4K citations

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Determining Sample Size for Research Activities

Robert V. Krejcie, Daryle W. Morgan · Educational and Psychological Measurement · 1970 · 18.1K citations

, , +17

Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile range

Xiang Wan, Wenqian Wang, Jiming Liu et al. · BMC Medical Research Methodology · 2014 · 11.2K citations · Full text

, , +14

Sample Size in Qualitative Interview Studies

Kirsti Malterud, Volkert Siersma, Ann Dorrit Guassora · Qualitative Health Research · 2015 · 11.1K citations

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Comparison of Convenience Sampling and Purposive Sampling

İlker Etikan · American Journal of Theoretical and Applied Statistics · 2016 · 10.6K citations · Full text

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1–5 of 3.8K

Authors

7.3K

  1. SA
    Steven A. Julious

    University of Sheffield, United Kingdom

    20 publications · 5.4K citations

    19

    h-index

  2. TF
    Tim Friede

    Universitätsmedizin Göttingen, Germany

    23 publications · 931 citations

    16

    h-index

  3. DG
    Douglas G. Bonett

    Iowa State University, United States

    15 publications · 4.2K citations

    15

    h-index

  4. HJ
    H. J. Keselman

    University of Manitoba, Canada

    17 publications · 1.5K citations

    14

    h-index

  5. JA
    James Algina

    University of Florida, United States

    19 publications · 1.6K citations

    14

    h-index

1–5 of 7.3K

Institutions

2.4K

  1. Harvard University

    Cambridge, United States

    26 h-index

    54 publications

    4.2K citations

  2. University of Washington

    Seattle, United States

    26 h-index

    54 publications

    4.6K citations

  3. Iowa State University

    Ames, United States

    26 h-index

    55 publications

    7.1K citations

  4. University of Wisconsin–Madison

    Madison, United States

    24 h-index

    56 publications

    10.1K citations

  5. Stanford University

    Stanford, United States

    24 h-index

    39 publications

    4.6K citations

  6. National Cancer Institute

    Bethesda, United States

    23 h-index

    43 publications

    3.8K citations

  7. University of Minnesota

    Minneapolis, United States

    23 h-index

    46 publications

    3.5K citations

  8. University of Florida

    Gainesville, United States

    23 h-index

    53 publications

    5.5K citations

1–8 of 2.4K

Venues

  1. Statistics in Medicine

    256 publications · 30K citations

    72

    h-index

  2. Journal of the American Statistical Association

    140 publications · 13.7K citations

    51

    h-index

  3. Biometrics

    128 publications · 10.5K citations

    51

    h-index

  4. PubMed

    Repository · 114 publications · 8.5K citations

    40

    h-index

  5. Biometrika

    87 publications · 6K citations

    38

    h-index

1–5