Those "graduating" from a train-the-trainers' program must perform no less competently than professional trainers for a training intervention to be successful. This lesson's readings address this issue from a variety of perspectives. Compose a report comparing and contrasting the manner in which each set of authors measures the quality of the train-the-trainers' initiatives. In creating the report, make a recommendation about which of the three approaches you believe is the most valid way of measuring the quality of a train-the-trainers' program. Explain your recommendation.