How Might The Pedagogy Of A PhD Supervisor Differ From That Of An MSc Supervisor An MSc and PhD are quite different both in terms of the length and the expectations placed on the students undergoing the program. First, let's just assume that the 'students' I reference below are hard working, want to be in their programs, and make an effort to be a good mentee. 

Trying to put myself in the shoes of a supervisor, and all else equal, I would expect (in the general sense) more from my PhD students than I would from my masters students - although I recognize there are probably instances where supervisor expectations might be similar, but I doubt they would expect more of a MSc student than a PhD student. 

What I am curious about is how a supervisor might approach their end of the student-supervisor relationship from a pedagogical point of view when the student is a PhD student in contrast to being an MSc student. For example, what values or attitudes might a PhD supervisor try to impart on their student that might not be warranted for an MSc student, or what type of expectations might a supervisor place on their PhD student that might not be appropriate to place on the MSc student? 

I say pedagogically because I think the question can be answered without needing to reference a specific field. I'm not sure if it really matters or not, but if you think it does, one can use Canada-US as a place of context.

While some might view the question to be ambiguous, I think it is relevant enough for the forum because it can help shape a healthy student-advisor relationship.
I think that one of the largest differences between advisement of a PhD student and a MSc student is found in what the end goal of the degree in question is. 

In my field (Math/CS), most MSc students are trying to augment their undergraduate education with a bit more experience and higher level topics. It is an extension of the undergraduate education. Yes, there is a research component, but that is not usually the main focus of the degree in my opinion. The focus is more on application of advanced concepts in an existing sphere of solutions. 

On the other hand, a PhD student needs to learn to be an independent researcher. They need to be able to develop new and novel techniques, all with decreasing levels of guidance as they progress through the program.

Advisement of the respective degree programs would follow what I have outlined above. A MSc student should be aided in augmenting their existing knowledge; a PhD student should be guided towards independently led research.