objective limitations

Thus real and objective limitations and risks (of which there are many) may be magnified still further by teachers' projections.

Some proposals have been made along these lines, but I think we should have no illusions and that we must be aware of the objective limitations and difficulties of this approach.

He argued that Warcollier's method was sub-optimal as the targets were not sufficiently selected at random, and correspondences between targets and responses were identified without formal and objective limitations.

We must resolve this problem, but we will only resolve it by maintaining an attitude of cooperation amongst the three institutions and taking account of the objective limitations with which the institutions must take this decision.