I don't really get the situational judgement section. All the books I have say "Don't assume that the action is the only action being taken".
Scenario: A student avoids doing cannulations. She can't remember what to do exactly and is not competent to perform them. She needs to perform one for her end of year exam.
Action: Brush up on the cannulation theory and technique by reading her notes.
My answer: A very appropriate thing to do
Actual answer: Appropriate but not ideal
Reason given: It's a good thing to do because she can't remember how to do the procedure, but it won't improve her practical competence.
Now, if you are not assuming that it's the only thing that is being done, I can't see how this is anything other "very appropriate"., because you can't assume that she is not performing other actions to improve her practical competence.
If you are assuming that it's the only thing done, then it would have to be "very inappropriate" as you are possibly going to hurt the patient in the end of year exam.