Methodology Article | | Peer-Reviewed

Importance of Reliability and Validity in Research

Received: 26 September 2024     Accepted: 23 October 2024     Published: 12 November 2024
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Abstract

The goal developing a new research tool is to ensure that the measurement tool has a high level of external validity to be generalizable and have a broader reach and also is highly reliable and able to consistently gather the same result. Researchers need to determine the validity and reliability of each assessment to ensure that they are not misleading their readers and the data can be trusted based on statistical evidence to support their conclusions. Reliability is the ability of consistency of the results over multiple tests. This process can be calculated by determining various measurements such as test-retest reliability, parallel-form reliability, split-half reliability by calculating a correlation coefficient or a t-test. Validity is the extent in which a test will measure what is said to test, which can be established by looking and measuring face validity, content validity, criterion-related validity, and construct validity. Validity can be established by using various experts to determine if a test is clear and relevant using a tool such as content validity index. If statistically reliability and validity is established, the research will increase the impact on the research and generalizability can be established.

Published in Psychology and Behavioral Sciences (Volume 13, Issue 6)
DOI 10.11648/j.pbs.20241306.11
Page(s) 137-141
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Reliability, Validity, Correlation Coefficient, Test-Retest Reliability, Content Validity Construct Validity, Content Validity Index

References
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[3] Cohen, R., Schneider, W., & Tobin, R. (2022). Psychological testing and assessment an introduction to tests and measurements (10th ed.). McGraw Hill.
[4] Esterling, K., Brady, D., Schqitzgebel, E. (2023, February). The necessity of construct and external validity for generalized casual claims. Institute for Replication.
[5] Haradhan, M. (2017, October 1). Two criteria for good measurements in research: validity and reliability. Annals of Spiru Haret University.
[6] Institute of Medicine of the National Academies. (2015) Psychological Testing in the Service of Disability Determination. National Academies Press.
[7] Knodt, A., Elliot, M., Whitman, E., Winn, A., Addae, A., Ireland, D., Poulton, R., Ramrakha, S., Caspi, A., Moffitt, T., Hariri, A., (2023, September). Test-retest reliability and predictive utility of a macroscale principle function connectivity gradient. Wiley Periodicals LLC.
[8] Liu, Y., Suh, K., Maini, P., Cohen, D., Baker, R. (2024, January 31). Parameter identifiability and model selection for partial differential equation models of cell invasion. J. R. SOC. Interface 21.
[9] McCoach, D. B., Gable, R. K., & Madura, J. P. (2013). Instrument development in the affective domain (3rd ed.). Springer.
[10] National Library of Medicine (2015, June 29). Committee on Psychological Testing, Including Validity Testing, for Social Security Administration Disability Determinations; Board on the Health of Select Populations; Institute of Medicine. Washington (DC): National Academies Press (US);
[11] Patino, C. & Ferreira, J., (2018) Internal and external validity: can you apply research study results to your patients? Sociedade Brasileira de Pneumologia e Tisiolgia.
[12] Price, P., Jhangiani, R., Chiang, I, Leighton, D, Cuttler, C. (2017). Research methods in psychology. PB Pressbooks.
[13] Roebianto, A., Savitri, S., Aulia, I., Suciyana, Mubarokah, L., (2023, March). Content validity: definition and procedure of content validation in psychological research. TPM. 30. 1.
[14] Schaaf, J., Weidinger, L., Molleman, L., Bos, W., (2023, 8 September). Test-retest reliability of reinforcement learning parameters. Behavior Research Methods.
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[16] Zafrullah, Z., Ramadhani, A., Ayuni, T., Fadhilla, T., Safitri, R. (2024). The using confirmatory factor analysis as construct avalidty in education research: a analysis with biblioshiny. Journal of Education, Social Science and Humanities 2. 3
[17] Zamanzadeh, V., Ghahramanian, A., Rassouli, M., Abbaszadeh, A., Alavi-Majd, H., & Nikanfar, A.-R. (2015). Design and implementation content validity study: Development of an instrument for measuring patient-centered communication. Journal of Caring Sciences, 4(2), 165-178.
Cite This Article
  • APA Style

    Karnia, R. (2024). Importance of Reliability and Validity in Research. Psychology and Behavioral Sciences, 13(6), 137-141. https://doi.org/10.11648/j.pbs.20241306.11

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    ACS Style

    Karnia, R. Importance of Reliability and Validity in Research. Psychol. Behav. Sci. 2024, 13(6), 137-141. doi: 10.11648/j.pbs.20241306.11

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    AMA Style

    Karnia R. Importance of Reliability and Validity in Research. Psychol Behav Sci. 2024;13(6):137-141. doi: 10.11648/j.pbs.20241306.11

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  • @article{10.11648/j.pbs.20241306.11,
      author = {Richard Karnia},
      title = {Importance of Reliability and Validity in Research
    },
      journal = {Psychology and Behavioral Sciences},
      volume = {13},
      number = {6},
      pages = {137-141},
      doi = {10.11648/j.pbs.20241306.11},
      url = {https://doi.org/10.11648/j.pbs.20241306.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.pbs.20241306.11},
      abstract = {The goal developing a new research tool is to ensure that the measurement tool has a high level of external validity to be generalizable and have a broader reach and also is highly reliable and able to consistently gather the same result. Researchers need to determine the validity and reliability of each assessment to ensure that they are not misleading their readers and the data can be trusted based on statistical evidence to support their conclusions. Reliability is the ability of consistency of the results over multiple tests. This process can be calculated by determining various measurements such as test-retest reliability, parallel-form reliability, split-half reliability by calculating a correlation coefficient or a t-test. Validity is the extent in which a test will measure what is said to test, which can be established by looking and measuring face validity, content validity, criterion-related validity, and construct validity. Validity can be established by using various experts to determine if a test is clear and relevant using a tool such as content validity index. If statistically reliability and validity is established, the research will increase the impact on the research and generalizability can be established.},
     year = {2024}
    }
    

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