Only the ones I was a Speaker are presented here, excluding the numerous Keynote Addresses
- Population and Poverty Reduction, Ghana Academy of Arts and Science Lecture, July, 2006
- Pooling of Cross-Section and Time Series Data, Departmental Seminar, Department of Statistics, Addis Ababa University, Ethiopia, May 4 and 6, 2002
- Classical Pooling of Cross-Section and Time Series Data in Regression Modelling, Institute of Statistical, Social and Economic Research (I.S.S.E.R.) Seminar, May, 2002
- Determinant of uptake of curative services,S.S.E.R Seminar, October 2000
- General Overview of Socio-cultural Perceptions and Practices relating to Sexual Maturation and Menstruation in Ghana, organized by FAWE, Accra, 20 August, 2000
- Teenage pregnancy and Attrition rate of Girls at Basic Level of Education in Ghana, organized by FAWE, Accra, 1 October, 1999
- Modelling Longitudinal Data , 50th Anniversary Inter-Faculty Lecture, University of Ghana, Legon, 29 October, 1998
- Maximum Correlation Linkages, An Analytic Approach to Determine Principal Components, S.S.E.R Seminar, October 1998.
- Shistosomiasis Control: Computer Modelling based on Fieldwork in Volta Region, presented at a Workshop on Linking Research to Programme Development Case Studies: Malaria Control and Sustainability of EPI, organised by the Health Research Unit of Ministry of Health, Ghana, 11th February,1997
- Health Systems Research: An integrated Research Methodology, Inter-University Seminar/Workshop on Social Science Research, July 25-29, 1994 (in collaboration)
- Variable Selection in Regression Analysis under the condition of Multicollinearity , 4th Colloquium of Faculty of Science, University of Ghana, 10 June 1992
- Forecasting Error in Trend Modelling and the use of the N-Statistical Tables , Inter-Faculty Lecture, University of Ghana, Legon, 6 June 1991
- The N-Statistical Tables, Departmental Seminar, Department of Statistics, University of Ghana, Legon, May 1991
- Computing Forecasting errors in Trend Analysis, 2nd Colloquium of Faculty of Science, University of Ghana, Legon, 1990
