Samson Ojunga

Resume photo

Samson Ojunga

E-mail :
Researcher ID :0000-0001-8802-8355
Designation : Research Scientist
Expertise : Biometrician

Journal papers

  1. S.O. Ojung’a, JO Nyakinda, E Okuto and JA Mullah Sensitivity analyses of population projection matrix of Cestrum aurantiacum , International Journal of Statistics and Applied Mathematics 2020; 5(6): 43-47 DOI:
  2. Bala, P., Ojung’a, S., Okumu, J., Kisiwa, A., Langat, D. and Nyambati, R. (2020) “Tree-Based Conflict Management Mechanism among Small Landholders in Agroforestry Systems of Kenya”, East African Journal of Forestry and Agroforestry, 2(2), pp. 24-39. doi: 10.37284/eajfa.2.2.214
  3. S.O.Ojung’a, J.O Nyakinda, E.Okuto and J.A Mullah (2020) . Extensions of Lefkovitch matrix for modeling invasive Cestrum aurantiacum population Dynamics. Mathematical Theory and Modeling. ISSN 2224-5804 (Paper) ISSN 2225-0522 (Online).Vol.10, No.7, 2020
  4. Jesse Omondi Owino & Peter Murithi Angaine & Alice Adongo Onyango & Samson Okoth Ojung’a & John Otuoma, 2020. "Evaluating Variation in Seed Quality Attributes in Pinus Patula Clonal Orchards using Cone Cluster Analysis," Journal of Forests, Conscientia Beam, vol. 7(1), pages 1-8
  5. S. O. Ojung’a, J. O. Nyakinda, E. Okuto, J. A. Mullah, Invasive Species Population Status Modeling Using Stage Based Matrix: Mount Elgon Ecosystem. Mathematical Theory and Modeling ISSN 2224-5804 (Paper) ISSN 2225-0522 (Online) DOI: 10.7176/MTM Vol.9, No.2
  6. Jonah Kiprop, David Langat, Joshua Cheboiwo, Joram Kagombe, Abdala Kisiwa, Stella Gatama, Samson Okoth. Value of Pollination Services in Farmlands Adjacent to Mau, Cherangany and Mt. Elgon Forests. Journal of Natural Sciences Research. ISSN 2224-3186 (Paper) ISSN 2225-0921 (Online) DOI: 10.7176/JNSR Vol.9, No.10, 2019
  7. Thalma Khalwale, David Langat, Paul Abuom and Samson Okoth, Factors Influencing Adoption of on-Farm Tree Planting in Shinyalu Sub-County, Kakamega, Kenya International Journal of Forestry and Horticulture 2018, 4(2) : 38-48. doi:
  8. Ojung’a Okoth Samson, Mose Nyandwaki, Peter Mutwiri, Otulo Wandera, Omollo Oriema and Edgar Otumba., 2014 . The Application of Logistic Regression in Modeling of Survival Chances of HIV-Positive Patients under Highly Active Antiretroviral Therapy (HAART): A Case of Nyakach District, Kenya. Journal of Medicine and Clinical Sciences. Vol. 3, No 3. pp. 14-20
  9. Otwande Andrea, Ojung’a Okoth Samson, Otulo Wandera Cyrilus, Fred Onyango. Analysis of Seasonal Time Series with Missing Observations of Fish Harvesting in Lake Victoria, Kenya. Mathematical Theory and Modeling ISSN 2224-5804 (Paper) ISSN 2225-0522 (Online) Vol.4, No.14, 2014
  10. Cyrilus, Otulo Wandera, Ojung’a Okoth Samson and Otumba Edgar Ouko. “Screening of New strains of sugarcane using Augmented Block Designs.” Mathematical theory and modeling 4 (2014): 153-161
  11. M’Mukiira Peter Mutwiri, Ojung’a Samson Okoth, Fredrick Onyango, Two-Factor Factorial Design Application in Analyzing Differential Performance Between Single-Sex Schools and Mixed Schools in Compulsory Subjects at KCSE:Case study in Homa Bay County, Kenya. Mathematical Theory and Modeling ,ISSN 2224-5804 (Paper) ISSN 2225-0522 (Online),Vol.4, No.14, 2014
  12. J. M. Nyandwaki, E. A. Odhiambo, S. O. Ojung’a and F. O. Onyango (2014),” Application of Markov Chain Model in Studying Progression of Secondary School Stu-dents by Sex During The Free Secondary Education: A case Study of Kisii Central District” Mathematical Theory and Modeling, The International Institute for Science, Technology and Education (IISTE), 4, 73-84., 2014.

Technical Notes /Protocols/Guidelines

  1. Jared Amwatta Mullah, Boaz Ngonga and Samson Ojung’a: management of cestrum aurantiacum in Kenya; A guide for forest managers and stakeholders in rehabilitation of invaded areas in natural forest and agricultural landscapes-
  2. Langat D., CheboiwoJ ., Okoth S., Kiprop J., Kisiwa A., Guzha A., Smith N., DeMeo T., Kagombe J., Gatama S.1, Kerkering J. and Doud : Economic Value of the Water Towers in Kenya,


  • Sept 2020 –Date : Research Scientist I, Biometrician, Kenya Forestry Research Institute (KEFRI), P.O Box 20412 -00200 Nairobi, Kenya.
  • Sept 2015-Sept 2020 : Research Scientist II, Biometrician, Kenya Forestry Research Institute (KEFRI), P.O Box 20412 -00200 Nairobi, Kenya.
  • Jan 2010 – Aug 2015 : District Field Officer-Ministry of Devolution and Planning Ministry of Devolution and Planning Kengya, Kisumu, Kenya
  • May 2008– Jan 2010 : Credit officer/ Relationship Officer Credit- Equity Bank Ltd, Mbita Branch

Academic Qualification

  • 2018-Date : PhD. Integrated Soil Fertility Management: Kenyatta University (On-going)
  • 2012-2015 : MSc. Integrated Soil Fertility Management: Kenyatta University, Kenya
  • 2006-2010 : B.Sc. Environmental Studies (Resource Conservation): Kenyatta University, Kenya
  • 2014 – 2021 : on going: Doctor of Philosophy (Ph.D.) -Applied Statistics -Jaramogi Oginga Odinga University of Science and Technology
  • 2010 – 2012 : MSC Applied Statistics -Maseno University
  • 2010 – 2011 : Post Graduate Certificate in Conflict and Development; The Open University
  • 1999 – 2004 : Bsc Applied Statistics -Maseno University


  1. Research Have participated in several research surveys in various field (health, education water and sanitation, economic surveys) and gained a lot of experience in conducting research.
  2. Data Analysis Posses data analysis skills. I have adequate knowledge and experience in using SPSS, R and Genstat.
  3. Project Management- Have wide field experience in project planning and management
  4. Public Policy Able to analyze and formulate policies.
  5. M&E Have undergone several trainings in M & E by the Monitoring and Evaluation Directorate and well conversant with NIMES, UNDP M &E Models. I have field experience of four years in Participatory Monitoring and Evaluation. Experienced in designing M& E plans and log frame matrix

Other Courses

  • December 2013 : Certificate in Public Policy Management-Kenyatta University, Nairobi
  • February 2013 : Certificate in Monitoring and Evaluation-Kenyatta University, Nairobi,
  • November 2013 : Certificate in SPSS, R and Genstat Maseno University, Kisumu City Campus
  • September 1999 : Computer Skills: Proficient on PCs and Windows (Ms Office suite)
  • Statistical Packages : MINITAB and Programming in Pascal, Maseno University, Maseno.
  • Computers : Proficiency in Windows operating systems and Ms Office, Excel and Ms Access Data Base.