Adult Learning Principles 2: Blending Interaction with Measurement Adult Learning Principles 2 combines self-study with realistic workplace activities to develop skills in learning measurement. Building on Adult Learning Principles 1, this Learning Short-take(R) examines the importance of Return on Investment (ROI) in training and explores common myths around learning measurement. For trainers, educators, facilitators and managers the library of training activities will allow you to develop new and innovative strategies to assess learning during workshops, training programs and e-Learning sessions. In the world of training and development, the subject of measuring ROI is discussed frequently. Organizations everywhere are searching for the perfect measurement system to link human resource capability with the business strategy. To achieve this result, it is important to understand how learning can be effectively measured in the classroom. It is during the training itself that we have the first opportunity to observe learning transfer taking place. Adult Learning Principles 2 provides a library of 18 training activities that can be used to measure learning during training courses. It also includes the Training Review Analysis tool, provided as a free download.