Beginning with debates about the effects of smoking on lung cancer, sensitivity analyses characterizing the hypothetical unobserved conditions that can alter statistical inferences have had profound impacts on public policy. One of the most ascendant techniques for sensitivity analysis is Oster's (2019) coefficient of proportionality, which…

Background: Meta-analysis is considered to be the gold standard for evidence synthesis. It involves combining data from multiple independent sources to produce a summary estimate with improved precision. Traditionally, meta-analysis methods have been applied to a large collection of studies, and past research efforts have indicated its numerous…

The main purpose of this study is to assess the degree to which transformational leadership was practiced in the technical vocational education and training institutions (TVETIs) of Ethiopia. To this end, cross-sectional survey research design was adopted. The study was conducted in seven government TVET institutions selected through simple random…