Anxiety disorders have significant negative effects on children's academic performance, peer relationships, and family functioning (
1). Among anxiety disorders, separation anxiety disorder is known as one of the most common anxiety problems among children (
2). In a study by Shear et al., 4.1% of children had clinical levels of separation anxiety, and in almost one third (36.1%) of the cases, they remained until adolescents (
3). The main characteristic of separation anxiety disorder is severe fear or anxiety related to separation, which are some of the symbols of attachment or anticipation of separation (
4). Some of the separation anxiety naturally appear in early childhood and are part of a child's normal development. However, when anxiety is severe, it persists until later childhood and the diagnosis of separation anxiety disorder is raised (
5). In other words, the main point in the diagnosis of this disorder is the disproportionate anxiety and distress in the child during separation, in terms of their age and developmental stage. So, in such cases, fear of separation interferes with daily activities like going to school or participating in activities related to the age (
6). Effective childhood intervention not only improves current adjustment, but also significantly reduces future psychological trauma (
7).
There are several factors contributing to anxiety disorders. One of the most important changes in today's life that can affect child care is the increase in the number of mothers who are working outside home (
8). The findings of some studies indicated that, the supervisory role of the working mother decreases in different aspects of the child's life, and this less likely supervision in parenting styles increases the likelihood of behavioral problems (
9). Also, full-time mothers' employment reduces the family mental health while mothers' part-time jobs can not only balance work and family, but also increase positive mentality in mothers along with increasing the mental health of family members (
10). Nursing is among the jobs where an individual spends lots of time with the patients (
11). Because of their overwhelming workload and specific occupational conditions, their general health and mental health are also at risk. Therefore, nurses need to maintain a strong mentality and complete mental health to continue their careers (
12). Otherwise, nurses who are not in good general health cannot provide effective patient care, and this will increase the risk of errors and occupational accidents that will ultimately affect both the patient and the nurse (
13). Nursing is one of the occupations that exposes nurses to work-family conflict due to its difficulty from the beginning of education to retirement, including long shifts and overtime, willingly or unwillingly (
14). Accordingly, due to the importance of nurses' health, as key members of the country's health system, who are responsible for their own family and community health, and the since nurses' health is directly related to the quality of their performance in patient care and family roles (
15) the need for this research is becoming increasingly clear.
Nowadays, psychotherapists use various therapies to treat separation anxiety disorder (
16).
Despite good empirical support for cognitive and behavioral therapies for the treatment of anxiety disorders in children with the age of 7 years old and older, research on children under 7 years old has received little attention. This may be due to the fact that, existing cognitive-behavioral therapies are likely to be beyond the cognitive abilities of a young child (under 7 years old) with separation anxiety disorder. Moreover, the effectiveness of cognitive-behavioral therapies requires active participation of the child in therapeutic sessions and the active collaboration of the therapist and the child, a degree of cooperation that is not usually achieved in children with the age under 7 years old (
17). One of the relatively new approaches to the etiology and treatment of childhood disorders, including anxiety disorders, which emphasize on the role of parents, is the parent-child interaction approach. Moreover, parent-child interaction therapy, as an approved parenting behavior training program, was established in 1970 by Eyberg for the parents and young children aged between 2 and 7 years old with malicious behavior disorder (
18).
This approach targets and corrects inappropriate parenting behaviors by focusing on the parents and their behaviors, rather than concentrating on the child (
19). This model is in terms of the assumption stating that, improving the parent-child interactions will lead to the improved child and family performance. This training directly targets parental overconfidence behaviors identified to play a major role in causing anxiety in children (
20). According to the above-mentioned explanations, it is emphasized that, many childhood disorders are rooted in parental misconduct and negative parent-child interactions (
21).