The study: http://brown.edu/Departments/Human_Development_Center/Roundtable/Harkness.pdf http://brown.edu/Departments/Human_Development_Center/Roundt... I don

The study: http://brown.edu/Departments/Human_Development_Center/Roundtable/Harkness.pdf http://brown.edu/Departments/Human_Development_Center/Roundt... I don't see anything about controlling for variables, experiment design, confidence intervals etc. This is an ethnographic study, not a random survey. Don't treat it like one.