Some very useful resources already identified here among the various responses. I offer the following that will hopefully add to those:
In some settings, the design phase for a course on communications in medical settings will include data from stakeholders. That is, an instructor or course designer will collect actual hard data from those who hold some interest in the instructional content for the program. Those stakeholders might include institutional mission and goals statements for your employer (university, company, etc.), those who have completed the program in which you teach and who are now (hopefully successfully) working in a setting where they use the skills acquired previously in your program (alumni). In addition, accrediting bodies can be stakeholders in some settings; those who hire the graduates of your language program and others. Stakeholders are consulted in the design phase of curriculum development for most languages for specific purposes programs - such as yours for medicine. Hope this information is useful!
This is a wonderful question! I feel listening is an essential skill for Medical students. Hassan briefly mentioned this skill. I feel certain that their knowledge can actually get in the way of their treatment. As soon as they hear one or two symptoms it is easy to rush into a diagnosis. It seems the medical students also requires reflective attributes. For assessment, with permission they might record their conversation(s) with a patient and then upon reflection, explain how they might have improved this communication, when they stopped listening, when they found the answer before hearing all. This can certainly be more difficult when the patient is speaking a language the medical student doesn't know. One university had their medical students keep ignorance logs to record what they didn't know. All the best to you!
this is a great question! I think it is particularly important to involve patients, e.g. to ask patients if they volunteer in medical education by providing feedback to the students. If medical students are involved in bedside teaching at an early stage during their studies, this might help them establish good communication skills. Although a lot can be taught in workshops, it is vital to get feedback from the patients themselves how they feel when communicating with the future clinician. This might help the students to find out how they can improve their communication skills. The objective measurement could be a questionnaire that every patient fills out. It would reflect the communication with the student. The students would be handed out copies of these questionnaires to see what they do well and what they need to change.