A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations
Determination of the required sample size is an important step in the planning of any research study. A large number of commercial and online resources are readily available for calculation of sample size required for various research designs. However, this abundance of information, the complexity,...
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An-Najah National University
2024-01-01
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| Series: | مجلة جامعة النجاح للأبحاث العلوم الطبيعية |
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| Online Access: | https://journals.najah.edu/media/journals/full_texts/2_Lgy4oaF.pdf |
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| author | Jihad M. Abdallah |
| author_facet | Jihad M. Abdallah |
| author_sort | Jihad M. Abdallah |
| collection | DOAJ |
| description | Determination of the required sample size is an important step in the planning of any research study. A large number of commercial and online resources are readily available for calculation of sample size required for various research designs. However, this abundance of information, the complexity, and the variation in calculation formulations and terminology used make it more confusing to researchers, particularly those with limited statistical knowledge. Therefore, there is a need for more simplified, easy to implement formulas for calculation of sample size. Here, we present a short review of the rules for calculation of sample size for common experimental designs used in research and provide more simplified forms for some of these formulas. Also, data are presented on sample size required for various scenarios with the intent to provide guidelines for researchers. A simple-to-use Excel sheet was developed to perform sample size calculations and is available online as a supplementary file. This Excel sheet was used to generate the data presented in this publication |
| format | Article |
| id | doaj-art-e9fc9854c7c8478688c372334b5b4f00 |
| institution | DOAJ |
| issn | 1727-2114 2311-8865 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | An-Najah National University |
| record_format | Article |
| series | مجلة جامعة النجاح للأبحاث العلوم الطبيعية |
| spelling | doaj-art-e9fc9854c7c8478688c372334b5b4f002025-08-20T02:56:51ZengAn-Najah National Universityمجلة جامعة النجاح للأبحاث العلوم الطبيعية1727-21142311-88652024-01-0138181610.35552/anujr.a.38.1.2120A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified EquationsJihad M. Abdallah0Department of Animal Production & Animal Health, Faculty of Agriculture and Veterinary Medicine, An-Najah National Universi-ty, Nablus PO Box 7, PalestineDetermination of the required sample size is an important step in the planning of any research study. A large number of commercial and online resources are readily available for calculation of sample size required for various research designs. However, this abundance of information, the complexity, and the variation in calculation formulations and terminology used make it more confusing to researchers, particularly those with limited statistical knowledge. Therefore, there is a need for more simplified, easy to implement formulas for calculation of sample size. Here, we present a short review of the rules for calculation of sample size for common experimental designs used in research and provide more simplified forms for some of these formulas. Also, data are presented on sample size required for various scenarios with the intent to provide guidelines for researchers. A simple-to-use Excel sheet was developed to perform sample size calculations and is available online as a supplementary file. This Excel sheet was used to generate the data presented in this publicationhttps://journals.najah.edu/media/journals/full_texts/2_Lgy4oaF.pdfeffect sizemultiple testingtesting proportionstesting meansstatistical powerrequired sample size |
| spellingShingle | Jihad M. Abdallah A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations مجلة جامعة النجاح للأبحاث العلوم الطبيعية effect size multiple testing testing proportions testing means statistical power required sample size |
| title | A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations |
| title_full | A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations |
| title_fullStr | A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations |
| title_full_unstemmed | A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations |
| title_short | A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations |
| title_sort | review of sample size determination for common experi mental designs further simplified equations |
| topic | effect size multiple testing testing proportions testing means statistical power required sample size |
| url | https://journals.najah.edu/media/journals/full_texts/2_Lgy4oaF.pdf |
| work_keys_str_mv | AT jihadmabdallah areviewofsamplesizedeterminationforcommonexperimentaldesignsfurthersimplifiedequations AT jihadmabdallah reviewofsamplesizedeterminationforcommonexperimentaldesignsfurthersimplifiedequations |