I work with troubled teens. No child is raised in a vacuum. It's impossible to scientifically trace one physical factor as a root cause of all of their problems. It is very rare that one emotional factor can ever be traced as the root cause of all of their problems. That's because it is the human condition to evolve intellectually and emotionally every day as a result of our interaction with the world around us. Therefore, the test conditions change from day to day with the individual.
It's social workers who think they're all Freud Jr who get their hooks into these kids and TELL them, sometimes on a daily basis, what to feel, what to think and that everything is their parents' fault in one way or another; that they are responsible for nothing and must concentrate on feeling good about themselves, whatever the eventual cost to them. Because that cause is never calculated. Any further problems can be conveniently blamed in the parents.
In addition I am sick and tired of hearing pop-psyche aficionados insisting that kids have no intellectual capacity until they're 18 and that all thoughts must be taught to them until then. That's nothing more than an excuse to brainwash our youth. The truth is that all children have the capacity to reason logically from day one, and only intellectual stimulation and the neurons such stimulation causes to connect will affect the intellectual capacity of the average child - as long as that child suffers no physical head trauma resulting in brain damage.
From experience, I can tell you pop-psych "wisdom", like promoting crack and ecstasy while preaching against other drugs with far lower side effect rates has caused more problems in the past ten years than all the alcoholic mothers in the same time period. For your information, crack has a 100 percent damage rate in unborn children. You seem yo have forgotten than in your emotional charge against latest pseudo-scientific fad.