For sure it is good to seek a measurable criterion. The question is whether laboratory subjects' views on the right level should have normative force. An altern

For sure it is good to seek a measurable criterion. The question is whether laboratory subjects' views on the right level should have normative force. An alternative take is: these are just not-very-informed people, and unless they can give reasons for their views, we shouldn't take them seriously as inputs into the policy-making process.