What aspect of training does TC 3-22.9 suggest should be evaluated regularly?

TC 3-22.9 emphasizes the importance of regularly evaluating the effectiveness of training sessions to ensure that the objectives of the training are being met and that participants are gaining the necessary skills and knowledge. Regular evaluation helps identify areas for improvement, ensures that training methodologies are effective, and allows for adjustments based on feedback and performance metrics. This focus on effectiveness is key to maintaining high standards in training programs and maximizing the qualifications and readiness of personnel.

The other aspects, while potentially important, are not the primary focus of TC 3-22.9 when it comes to regular evaluations related to training performance and outcomes.