I agree [with Steven Lam below]. It is still important to try and strive for neutrality, independence and impartiality (taking these concepts as roughly synonymous) even if we know that in practice these "ideals" may not be achieved 100%. It is still important to try and control biases, still important to consult broadly etc. even if we know that perfect neutrality is humanely impossible to attain. And the reason it is important is indeed linked to getting a more convincing, more credible and useful outcome. A biased evaluation often remains unused, and rightly so.
RE: Neutrality-impartiality-independence. At which stage of the evaluation is each concept important?
I agree [with Steven Lam below]. It is still important to try and strive for neutrality, independence and impartiality (taking these concepts as roughly synonymous) even if we know that in practice these "ideals" may not be achieved 100%. It is still important to try and control biases, still important to consult broadly etc. even if we know that perfect neutrality is humanely impossible to attain. And the reason it is important is indeed linked to getting a more convincing, more credible and useful outcome. A biased evaluation often remains unused, and rightly so.