African Materials Engineering | 01 September 2007
Methodological Assessment of Quasi-Experimental Design in Evaluating Cost-Effectiveness of Water Treatment Facilities in Nigeria [2007]
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Abstract
Water treatment facilities in Nigeria face challenges related to cost-effectiveness due to varying environmental conditions and technological advancements. A quasi-experimental design was employed, utilising statistical models for analysis. Uncertainty in findings is considered within a 95% confidence interval. The methodological assessment revealed significant variation in cost-effectiveness metrics across different regions of Nigeria. Quasi-experimental design provided valuable insights into the variability of water treatment facility costs and effectiveness in Nigerian settings. Further research should explore regional-specific factors influencing cost-effectiveness to inform policy decisions. Water Treatment Facilities, Quasi-Experimental Design, Cost-Effectiveness, Nigeria The maintenance outcome was modelled as $Y<em>{it}=\beta</em>0+\beta<em>1X</em>{it}+u<em>i+\varepsilon</em>{it}$, with robustness checked using heteroskedasticity-consistent errors.