African Learning Design | 01 December 2010
Methodological Evaluation of Process-Control Systems in Senegal: A Randomized Field Trial
A, m, a, d, o, u, D, i, o, p
Abstract
In Senegal, process-control systems are employed to enhance engineering quality control in manufacturing processes. A randomized field trial was conducted over six months with 150 participants. Participants were randomly assigned to either the treatment group (using process-control systems) or control group (no system). The proportion of defects in treated groups was found to be significantly lower than that in control groups (p < 0.05). The randomized field trial demonstrated significant reliability improvements with the use of process-control systems. Recommendation for implementation of process-control systems based on findings and to further enhance quality control measures. Process-Control Systems, Engineering Quality Control, Randomized Field Trial, Reliability 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.