Introduction and Objective: Adolescence is one of the important periods of life and transition from childhood to adulthood.
Prevalence of many psychological problems such as depression, anxiety, and substance use disorder increases during adolescence.
Proper communication between parents and adolescents is conducive to better physical, mental and social maturity in adolescence.
This study tended to determine the effect of teaching negotiation styles to parents of adolescent girls on parent-child relationship.
Methods: This study was a quasi-experimental intervention with pre-test and post-test with control group. The sample was selected
using convenience sampling and included 64 parents with moderate to poor negotiation skills and their adolescent girls aged 13 to
18 years. The data collection continued from May to August 2019. Data was collected using a demographic questionnaire, Pierre’s
negotiation style and skills questionnaire and Fine’s parent-child relationship survey. Analysis was done using SPSS 20 software and
descriptive statistics, one-way ANOVA, chi-square, pairwise T and independent T tests. Results: Teaching parenting negotiation style
led to a significant increase in parent-child relationship score for adolescent girls (P<0.0001). The mean score of mother-child
relationship for adolescent girls before and after the intervention was higher than the father-child relationship score, although this
improvement was not statistically significant (P>0.05).This means that teaching parenting negotiation style improves parent-child
relationship in both parents and there was no significant difference between mother-child relationship and father-child relationship.
Moreover, parent-child relationship score of adolescent girls of intervention group in the mothers and fathers group showed a
significant increase (P<0.001). Conclusion: Teaching parenting negotiation styles is effective on parent-child relationship and
improves parental relationship with adolescent girls. Therefore, teaching negotiation styles is recommended for adolescent girls to
prevent puberty disorders.
Keywords: Negotiation style, parent-child relationship, adolescent, girls, puberty