Construction and Application of the Visualization Training Platform Based on a Multimodal Standardized Dataset for Pain Assessment in Critically Ill Children

The goal of this clinical trial is to learn if the visualization training platform based on a multimodal standardized dataset for pain assessment in critically ill children is applicable for pain assessment training. The study aims to answer: 1. Does pain assessment training with a visualization training platform based on a multimodal standardized dataset for pain assessment in critically ill children improve participants' knowledge level of pain assessment? 2. Does pain assessment training with a visualization training platform based on a multimodal standardized dataset for pain assessment in critically ill children improve participants' skill level of pain assessment? Researchers will compare a visualization training platform based on a multimodal standardized dataset for pain assessment in critically ill children to on-site lessons to see how well the platform intervention can be applied to pain assessment training. Participants will: 1. Use the visualization platform or receive on-site lessons for pain assessment training every week for 1 month. 2. Test before and 1 month after the start of the study.