The research investigates and analyzes the determinants of enterprise level training in the context of training effectiveness in the clothing industry of Sri Lanka. This study has focused on how suitably designed training methods could lead to training effectiveness. The research is based on five different training methods carried out in export oriented clothing factories in Sri Lanka. Participants for the training programmes have been selected so that optimum results can be expected out of them. Performance indicators such as efficiency, productivity, HR data etc. have been considered as measurement of training effectiveness. Findings on the determinants of training effectiveness are in line with the empirical study. The empirical study has been carried out to understand the current status quo of training in the clothing industry. The empirical study did not show any productivity improvements due to training. The training effectiveness of the training methods is far more intricate and heterogeneous than the conventional knowledge suggests. There are some pertinent explanations of the research findings on the negative impact of training effectiveness. The training experiments did not support the idea that training would enhance the productivity.