We've argued for years that you can't really learn critical thinking by taking a critical thinking course. Critical thinking is a skill that develops through reflective practice (VCoL). Recently, a group of Stanford scientists reported that a reflective practice approach not only works in the short term, but it produces "sticky" results. Students who are routinely prompted to evaluate data get better at evaluating data—and keep evaluating it even after the prompts are removed.
Lectica is the only test developer that creates assessments that measure and support this kind of learning.