Phrenology is the study of the shape and bumps on a person's skull, which some people used to think could reveal their personality traits and abilities. Full definition
You just expect people to read a collection of «research notebook» trial analyses, intermixed with phrenology cuteness, cartoons, commenters chipping in off topic, and even threads on different blogs talking to each other! (climateaudit.org)
So you're saying any studies that show formula yields better results (not that Tanya was making such claims) would be due to the impossibility of developing a fair sampling / testing method, but you have no problem extolling the virtues of breast feeding, not to mention perpetuating this modern day phrenology of head circumference as a determination of future IQ, based on the same flawed science? (psychologytoday.com)