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Psychometric Validation and KR-20 Reliability of a Knowledge Tool for Semi- Intensive Pig Production

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Deepjyoti Roy — Ph.D. Scholar Department of Veterinary Extension
Ajay Kumar Chaturvedani — Assistant Professor, Department of Veterinary Extension,
Jayant Goyal — Assistant Professor, Department of Veterinary Extension
Sanjay Kumar Ravi — Associate Professor, Department of Veterinary Gynecology and Obstetrics
Dhananjay Kumar — Assistant Professor, Department of Livestock Products Technology
Anshuman Kumar — Assistant Professor, Department of Animal Genetics and Breeding, Faculty of Veterinary and Animal Sciences, Institute of Agricultural Sciences, Rajiv Gandhi South Campus-Banaras Hindu University, Mirzapur 231307, Uttar Pradesh, India
Published 2 Jul 2025 Vol. 61 No. 3 (2025), pp. 104-108 ● Open access
❝ How to cite 🔗 https://doi.org/10.48165/IJEE.2025.613RT03
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Abstract

An instrument was constructed to assess the knowledge level of pig farmers with respect of scientific pig production under a semi-intensive rearing system. Primary review of relevant literature was the initial step in the identification of relevant items. A list of 42 items was prepared and then refined for preliminary assessment on sixty purposively selected pig farmers hailing from non-sampling areas. Data was collected during 2024- 25, through direct questioning method using an interview schedule by registering dichotomous responses, “correct” and “incorrect”, scored in binary format as “1” and “0”, respectively for each item. The raw data was analysed to determine item difficulty (P) and item discrimination (D), which sorted thirty relevant items. Validity of selected items was confirmed through a point-biserial correlation test, with all items having an rpb >0.30. The overall internal reliability of the knowledge tool was established by KR 20 test, which yielded a coefficient value of 0.92, signifying very high reliability of the tool in measuring knowledge of pig farmers. The 30 items, encompassing five well structured items under six major thematic dimensions, were incorporated to comprehensively assess the knowledge level of respondents. Based on equal class intervals, majority of respondents had medium level of knowledge. 

 

KeywordsDichotomous responseInternal reliabilityKnowledge toolKR-20Scientific pig productionSemi-intensiveValidity

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  1. Journal Articles:
  2. Banik, S., Naskar, S., & Barman, K. (2021). Smallholder pig production system of Assam. The Indian Journal of Animal Sciences, 90(10), 1441–1443. https://doi.org/10.56093/ijans.v90i10.111425
  3. Chandraker, K., Pandey, A. K., Seth, P., & Bera, K. N. (2021). Predictor Variables Affecting Adoption of Improved Pig Management Practices by Entrepreneurs. Indian Journal of Extension Education, 57(3), 106–108. https://doi.org/10.48165/IJEE.2021. 57325
  4. Conan, A., Cook, E. A. J., Hötzel, M. J., & Martínez-López, B. (2023). Editorial: Health and production issues in smallholder pig farming. Frontiers in Veterinary Science, 10, 1320982. https://doi.org/ 10.3389/fvets.2023.1320982
  5. Johnson, D. C., Chander, M., Sagar, M. P., Verma, M. R., & Patil, A. P. (2023). Assessing Organic Poultry Farming Knowledge Among Tribal Farmers: A Tailored Knowledge Test. Indian Journal of Extension Education, 59(4), 141–144. https://doi.org/10.48165/ IJEE.2023.59428
  6. Kesänen, J., Leino Kilpi, H., Arifulla, D., Siekkinen, M., & Valkeapää, K. (2014). Knowledge tests in patient education: A systematic review. Nursing & Health Sciences, 16(2), 262–273. https://doi.org/10.1111/nhs.12097
  7. Kuder, G. F., & Richardson, M. W. (1937). The Theory of the Estimation of Test Reliability. Psychometrika, 2(3), 151–160. https://doi.org/ 10.1007/BF02288391
  8. Kumar, R., Slathia, P. S., Peshin, R., Gupta, S. K., & Nain, M. S. (2016). A test to measure the knowledge of farmers about rapeseed mustard cultivation. Indian Journal of Extension Education, 52(3&4), 157-159.
  9. Mukhopadhyay, P., Dey, I., & Haldar, A. (2020). Development and validation of a tool to assess perceptions and practices regarding hypertension and associated comorbidities among primary health care providers of a rural community in India. Indian Journal of Community Medicine, 45(4), 458.
  10. Ntumi, S., Agbenyo, S., & Bulala, T. (2023). Estimating the Psychometric Properties (Item Difficulty, Discrimination and Reliability Indices) of Test Items using Kuder-Richardson Approach (KR-20). Shanlax International Journal of Education, 11(3), 18– 28. https://doi.org/10.34293/education.v11i3.6081
  11. Powell, L. R., Ojukwu, E., Person, S. D., Allison, J., Rosal, M. C., & Lemon, S. C. (2017). Psychometric Development of the Research and Knowledge Scale. Medical Care, 55(2), 117–124. https:// doi.org/10.1097/MLR.0000000000000629
  12. Sharma, S., & Singh, R. (2023). knowledge enhancement of landless and marginal farmers through entrepreneurship training on goat farming. Indian Journal of Extension Education, 59(4), 58–61. https://doi.org/10.48165/IJEE.2023.59412
  13. Verma, M. K., Pandey, A. K., & Singh, R. P. (2007). Knowledge level of tribal pig owners about scientific pig husbandry practices. Indian Journal of Agricultural Research, 41(4), 305–307.
  14. Vijayan, B., Nain, M. S., Singh, R., Kumbhare, N. V., & Kademani, S. B. (2023). Knowledge test for extension personnel on Rashtriya Krishi Vikas Yojana. Indian Journal of Extension Education, 59(1), 131-134. http://doi.org/10.48165/IJEE.2023.59127
  15. Vijayan, B., Nain, M. S., Singh, R., Kumbhare, N. V., & Ravi, K. N. (2022). Socio-economic transformation through RKVY RAFTAAR in Uttar Pradesh and Karnataka. Indian Journal of Extension Education, 58(3), 108-112. http://doi.org/10.48165/ IJEE.2022.58323
  16. Books/Reports/Theses/Webpages:
  17. Allen, M. J., & Yen, W. M. (2002). Introduction to Measurement Theory (Reissued). Waveland Press.
  18. Anastasi, A., & Urbina, S. (1997). Psychological Testing (7th ed.). Prentice Hall.
  19. Deka, R. P., Grace, D., Lapar, M. L., & Lindahl, J. (2014). Sharing lessons of smallholders’ pig system in South Asia and Southeast Asia: A review. Paper presented at the National Conference on Opportunities and Strategies for Sustainable Pig Production, Guwahati, India, 20–21 December 2014. Nairobi, Kenya: International Livestock Research Institute (ILRI).
  20. DeVellis, R. F. (2017). Scale development: Theory and applications (Fourth edition). SAGE.
  21. Directorate of A.H. & Veterinary, Assam. (n.d.). Pig farming—Assam. https://veterinary.assam.gov.in/sites/default/files/swf_utility_ folder/departments/ahvetdir_webcomindia_org_oid_4/portlet/ level_1/files/Pig%20Farming.pdf
  22. Food and Agriculture Organization of the United Nations. (2011). Mapping supply and demand for animal-source foods to 2030 (T. P. Robinson & F. Pozzi, Eds.) [Animal Production and Health Working Paper No. 2]. FAO. https://www.fao.org/4/i2425e/ i2425e.pdf
  23. Government of Assam. (2019). Assam Pig Breeding Policy, 2019. Animal Husbandry & Veterinary Department, Government of Assam. https://animalhusbandry.assam.gov.in/sites/default/files/ swf_utility_folder/departments/ahvetdept_webcomindia_ org_oid_3/portlet/level_1/files/assam_pig_breeding_policy_ 2019.pdf
  24. Haladyna, T. M. (2016). Item analysis for selected-response test items. In S. Lane, M. R. Raymond, & T. M. Haladyna (Eds.), Handbook of Test Development (2nd ed., pp. 392–409). Routledge.
  25. Hopkins, K. D. (1998). Educational and Psychological Measurement and Evaluation (8. ed). Allyn & Bacon.
  26. Kline, P. (2000). The Handbook of Psychological Testing (2nd ed). Routledge.
  27. Maji, S. (2018). Sustainability of Dairy Based Organic Farming System in Uttarakhand (Ph.D. thesis). KrishiKosh. https://krishikosh. egranth.ac.in/handle/1/5810163365
  28. Ministry of Finance, Government of India. (2023). Economic survey 2022–23. https://www.indiabudget.gov.in/economicsurvey/

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