This study evaluated the influence of therapeutic intervention and parent management training on improvement of parenting skills of abusive parents. Of subscales of parenting scale, laxness showed significant changes over the study period. Improvement in laxness can be due to education sessions, which emphasized on the importance of having clear, simple, and consistent rules. On the other hand, it appears that environment influences on laxness more than verbosity and over reactivity.
The existence of significant differences between the zero and third month evaluations in all subscales that have not continued up to the sixth months shows that abusive parents need longer intervention or booster sessions to keep the positive effects. Previous studies also mentioned relapse after initial improvement pursuant to parenting interventions and emphasized that studies are needed to see whether, some months after initial treatment, booster sessions should routinely be offered to prevent relapse (
12).
On the other hand, 80% of children in our study had at least one psychiatric disorder that makes the parenting more difficult. In fact, child behavioral problems have some negative influences on the parent's ability to undertake care giving tasks (
36). It seems that appropriate interventions for reducing child's misbehaviors reduce the burden of care for parents (
37) and make them stronger in the parenting role and subsequently decrease the risk of inept discipline and child abuse.
Letarte et al. (
21) showed more improvement than our study in parenting skills using the ‘Parenting Practice Interview’, although they found no difference on the measure of parenting self-efficacy feeling.
There are some differences between our study and the Letarte et al. (
21) study. They assessed the effectiveness of a parent training program ‘Incredible Years’ in improving parenting practices with longer time, and we used positive parenting program with two extra sessions and shorter intervention phase. We do not know whether or not our results would change if we extended our session. Although in both studies, the questionnaires assessed parenting skills, they were different. Other things that may explain the differences in results may be due to the source of the samples. Our samples were recruited from a psychiatric department and almost 30% of the mothers suffered from general anxiety disorder and depression, and although some parents in our study took other psychopharmacological interventions according to their psychiatric disease, there were no mental illness symptoms in Letarte et al. (
21) samples. It may be one of the reasons that parent management training did not induce more improvement in parenting skills in our study. Previous studies also have shown that maternal depression has negative impact on parenting and is associated with the development of behavior problems in children; subsequently, this makes parenting more difficult (
38).
However, the results of the present study do not show any effect of the program on the ‘Being a Parent’ scale or satisfaction and competency. It seems that these items originate from attitude and change in attitude requires longer time, so there was not any significant change in satisfaction and competency after 3 or 6 months.
Also previous studies mentioned that many families failed to improve with initial treatment following parenting interventions, indicating perhaps the necessity of systematic procedures to address the difficulties of these families (
12). Also, in the Letarte et al. (
21) study, there was no difference in the measure of parenting self-efficacy feeling. They believed that more time may be required before change could be observed in these outcomes, especially among parents who had a history of difficult parent–child interaction. Parents may be expected to develop confidence in their parenting skills over time, as they experience more successful interactions with their child (
21). Results of this study support the idea that preventive-intervention programs, such as parent training, can reduce harsh disciplines in parents.
The effect of our intervention on child abuse, neglect and child misbehaviors was assessed in another article (
39), but our findings in the present study show some degree of improvement in parenting skills following parent management training, and that improvement in parenting practices might lead to fewer situations of abuse or neglect (
27,
29).
The duration of intervention and follow-up was short in our study. If we had a longer time with booster sessions, we could find the most effective factors in parenting improvement and decreasing child abuse. It is recommended that future study would address resilience indicators and how to promote resiliency in Iranian families with child abuse.