Dr. (Ms.) W.C.W. Navaratna

Dr. (Ms.) W.C.W. Navaratna

Dr. (Ms.) W.C.W. Navaratna

B.Sc. (Colombo), PG Dip. in Appl. Stat. (Colombo), M.Sc. , Ph.D. (Simon Fraser)
Department of Mathematics and Computer Science
Room 388, Science and Technology Building

Tel : +94112881019 (519)

E-Mail : wcper@ou.ac.lk

 

I am a Senior Lecturer attached to the Department of Mathematics and Computer Science. I graduated from the University of Colombo, specialising in the area of Mathematics and completed postgraduate studies in the area of Statistics at the Simon Fraser University, Canada.

My research interests are mainly in the areas of goodness of fit techniques in Statistics and population estimation.

  Area of Specialization     Statistics

  Research Interests     Goodness of FIt, Population Estimation

Research Publications

  1. Navaratna W.C.W. and De Silva M.A.P (2013) A study of the effectiveness of continuous assessment as a learning tool. Proceedings of the Annual OUSL Academic Sessions – 2013.

 

  1. Navaratna W. C. W., Victor J. Del Rio Vilas and Dankmar BÖhning  (2008) Extending Zelterman’s Approach for Robust Estimation of Population Size to Zero-truncated Clustered Data, Biometrical Journal, Volume 50, Issue 04, 584 – 596

 

  1. Navaratna W. C. W., and Dankmar BÖhning (2007) Robust Estimation of Population Size based on Zero-truncated Clustered Data. Poster presentation for the Conference on Recent Developments in Capture Recapture Methods and their Applications, School of Biological Sciences, University of Reading, UK.

 

  1. Senaratna, L.K., Tantrigoda, R.U., Edirisinghe, E.A.D.N.D., Perera, W.C.W. and Karthikeyan, N. (2007) A study of the effectiveness of orientation sessions for students in the B.Sc. Degree Programme at the OUSL. Proceedings of the Annual OUSL Academic Sessions – 2007.

 

  1. Senaratna, L.K., Karthikeyan, N., Tantrigoda, R.U., Edirisinghe, E.A.D.N.D. and Perera, W.C.W. (2007) A study on personal counselling of students in the B.Sc. Degree Programme at the OUSL. Proceedings of the Annual OUSL Academic Sessions – 2007.

 

  1. Lockhart R. A. and Perera, W. C. W. (2006) Testing normality in Designs with many parameters, Technometrics, Volume 48, No. 03, pp 436 – 444

 

  1. Perera, W. N. N. K, Perera W. C. W. and Samarakkody, R. (2002). Colombo air pollution from a statistical point of view, in proceedings of the 58th Annual Sessions, Sri Lanka Association of the Advancement of Science (SLASS), Dec 2, 2002 – Dec 07, 2002.

 

  1. Perera, W. C. W, Weerakoon, S., Banneheka, B. M. S. G. and Angammana, U. (2000). A mathematical model for population growth, birth and death rates of Sri Lanka, in proceedings of the 56th Annual Sessions, Sri Lanka Association of the Advancement of Science (SLASS), pp 192, Nov 27, 2001 – Dec 01, 2001

 

  1. Perera, W. C. W. (1996) Statisitcal Anaylsis of Thermoluminescence experiments for sedimentary dating, Unpublished Ph. D. Thesis, Simon Fraser University, Canada.

 

  1. Perera, W. C. W (1992) Estimation and Testing Goodness of Fit for mixtures of two parameter Weibull distributions, Unpublished M. Sc. Thesis, Simon Fraser University, Canada.

 

Ongoing Research

Statistical study of thyroid cancer status in Sri Lanka

Research Supervision

  • Koneswaran, K. (2001) National oral health status and association among related social and behavioural factors, M. Sc. Thesis, University of Colombo, Sri Lanka

 

  • Fernando, K. A. S. N. (Sep, 2000) A study on the performance of statistical techniques applicable for ordinal data, M. Sc. Thesis, University of Colombo, Sri Lanka

 

  • Angammana, U. (May, 2000) A mathematical model for population growth, birth and death rates of Sri Lanka, M. Sc. Thesis, University of Sri Jayawardanapura, Sri Lanka

 

  • Muniratne, W. D. K. J. (1999) A statistical tool for the lending banker, M. Sc. Thesis, University of Colombo, Sri Lanka

Other Publications

Course Material Authored for the B. Sc. Degree Programme offered by the Open University of Sri Lanka

 

PCU3141 – Bio Statistics

Unit 1 – Data and Data Collection

Unit 2 – Descriptive Data Summaries

Unit 3 – Inference based on Sample Data

 

APU1141/PCU1141 – Basic Statistics

Unit 1 – Descriptive Data Summaries

Unit 2  – Introduction to Probability

Awards

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