Looking for a standardize test for measuring a child's "learning to learn" skill. While IQ, EQ, etc. is related, I'm looking for a test built for the sole focus of measuring these skills.
A standardized test cannot measure how well a child learns, because you can't standardize the material or the environment and get a true measure of how the child learns.
No one can learn material they lack the prerequisites for; e.g. even the brightest 5-year-old won't pick up calculus, not having had all the levels of math leading up to it. Similarly, presenting material the child has already seen won't tell you anything about how they learn, just what they know. Learning happens on the edge of what is known and what is unknown, and that edge is somewhere different for every child.
Every child learns differently. Some need quiet, others need noise. Some need to try things out hands-on, and learn directly from experience alone, others learn more from following instructions. Some take in information best by reading, others through pictures/video, and still others by being talked to.
IQ is extremely hard to measure, and it represents a much simpler mental facility -- raw processing power -- than the ability to learn. I'm afraid that learning ability is completely beyond our ability to put a concrete number to.