Which of the Following Was Not a Finding of the Work

Which of the following was not a finding of the work undertaken by Lavalee et al. (2005) in their study of friendship groups for at risk children?

A) The presence of girls in the friendship group lead to significantly better behaviour in all members
B) Children placed in a friendship group would be significantly more likely to show improvements in moral behaviour than those in a control group
C) Children's encouragement from other group members for 'naughty' behaviour was less likely to show improvements in behaviour
D) Association with peers reinforces delinquent behaviour