The main effects of NFPP-SH on child behaviour were examined using analysis of co-variance ANCOVA, with self-help versus control as the between-subject variable, and T1 scores entered as the covariate. Inclusion of cases in the current analyses was done on an intention to treat basis, to preserve randomization. All participants, who were ran- domly allocated to either intervention or control were therefore included in the statistical analyses. Because no post-intervention outcome data were available for the families who dropped out, it was, therefore, assumed that there had been no change, and their baseline scores were carried forward to the follow. Attrition rates were generally low. Out of the 43 families assessed at baseline, 36 (84 %) completed follow-up assessment. Of those who failed to complete post-assessment, three were in the intervention group, and four in the waiting list control group