METHOD AND PROCEDURE - sample
experimental condition = 44 children - juvenile thieves
> grades - 1 (one)= 3, 2 (few)= 8, 3 (persistent)=10, 4(chronic/serious)=23
>referred to London Child Guidance Clinic, where Bowlby worked
27 = average IQ, 15 = higher IQ, 2 = lower IQ
control condition = 44 children who didn't steal > matched on IQ, age and economic status + referred to clinic
opportunity sampling = job