How can Duty Managers assess the effectiveness of staff training programs?

Tracking the incidence of customer complaints before and after training is a direct method to assess the effectiveness of staff training programs. This approach provides tangible evidence of how training has impacted employee performance and customer service quality. A decrease in customer complaints can indicate that staff has improved their skills and knowledge following the training. It reflects the practical application of what employees have learned, demonstrating the training's actual benefits in real-world scenarios.

While evaluating sales increases post-training could suggest a positive effect of training on performance, such increases may not solely be attributable to training. Other factors like marketing efforts or seasonal sales could influence sales figures.

Assessing employee satisfaction surveys alone might offer insight into how employees feel about the training but does not necessarily measure its effectiveness in relation to customer outcomes.

Comparing training costs to overall profits provides a financial perspective but does not directly evaluate the qualitative improvements in service or performance resulting from the training. The focus on customer complaints makes option C the most effective choice for assessing training efficacy.