It will not create uncritical 'learning drone' students. Creative and critical thinking begins with the basics: literacy and numeracy. Even learning to the test will result in literate and numerate students who can then move on to much more critical thinking. We can then define successful criteria that measure general critical thinking skills, like have students write essays or pass oral exams.  Narrowing of the curriculum is a concern in later stages of education, but the growth of a critical approach to humanities subjects has ensured that rote learning has been de-emphasised in these areas. Critical outcomes, nonetheless, remain measurable.