Explanation: This is actually a method of behavioural testing, because on the examples of behaviour tested and evaluated, performance will depend. More specifically, these are statements made by superiors about the performances of the person being observed, and about behaviour that leads to some degree of performance. This assessment is not only made on the basis of a single criterion, a scale, but there are several of them, which is why it is called mixed. So there are several standards on the rating scale and each observed is given more criterion descriptions (estimates) for each trait.
