I am very sceptical of any 'latest research project results', and even more so since Child of our Time. Last week there was a child who went through a dreadfully difficult first year - parents arguing, splitting up, being shunted from one to the other, moving around the place, and it was fairly easy to conclude that this would have an effect even on a young baby, and she was clearly 'deprived'. Winston then said there was a well-accepted test of a whether or not a baby is happy, and they did this thing where you observe the baby playing with toys through a one-way mirror, and observe the reaction when the mother leaves the room for a while, and then re-enters.
My son is part of a research project, and we underwent this 'test' too. His behaviour was almost identical to the child on the TV - which apparently 'proved' that she was desperately unhappy, had no bond with her mother, and was clearly damaged and deprived!
I could go on to explain why my son behaved the way he did, but I do not feel the need to justify myself or his behaviour. Many, many of the other aspects of the research project are equally suspect to me, and the visits often seem a waste of my time, and I cannot have any faith in the validity of any results they might come out with.