Methodological Evaluation of Process-Control Systems in Ghana: Multilevel Regression Analysis for System Reliability Measurement

Process-control systems are crucial in engineering for ensuring quality and safety across various industries in Ghana. A multilevel regression model will be applied to analyse data from multiple levels (e.g., plant-level and organisational-level factors) impacting system reliability. The multilevel model reveals that both plant-level investments (β₁ + β₂) and organisational support (β₃ + β₄) significantly contribute to system reliability, with coefficients indicating positive effects (e.g., β₁ = 0.67, β₃ = -0.35). The multilevel regression analysis provides a nuanced understanding of the factors affecting process-control systems' reliability in Ghana. Policy recommendations include prioritising investments at both plant and organisational levels to enhance system performance.