The Therapeutic Play-Based Intervention Programme (TOTEM) designed for the research was carried out with the children in the intervention group on the determined days and hours. The children were administered the post-test immediately after the end of the programme and then the retention test at the end of the first month.

Control group (routine education programme): The children in the control group were administered a pre-test in the kindergartens they were currently attending (which were included in daily routine life, games, etc. by preschool teachers living in the city), a post-test after five weeks in parallel with the study group, and then a retention test at the end of the first month. Considering ethical principles, the TOTEM programme was also applied to the children in this group after the study was completed.

In this context, the pre-school teachers in the container area were contacted and the sessions were held every Wednesday-Thursday (8 sessions in total) for 5 weeks, taking into account their availability hours. Children were included in the programme in groups of 12. Before data collection, the necessary materials were provided and stored in an empty container. It was found appropriate to complete the trainings in kindergartens located in the container city (4). A total of 3 evaluations were carried out: a post-test immediately after the end of the programme and a retention test at the end of the first month.

The Anxiety Scale in Preschool Children (Spence et al., 2001) developed by Spence, Rapee, McDonald, Ingram (2001) was adapted into Turkish by Şahin (2020). While the original scale had 28 items measuring social anxiety, separation anxiety, fear of physical injury, general anxiety and obsessive-compulsive disorder, Şahin added 5 items related to post-traumatic stress disorder while adapting it to Turkish and validity and reliability studies were conducted with these items. The scale is a 5-point scale and each item is scored between 0 and 4. A total score can be obtained from the scale. A high score on the scale indicates that anxiety in preschool children is high, while a low score indicates that anxiety in preschool children is low. Within the scope of the reliability of the scale, Cronbach's Alpha coefficient was calculated as 0.93 (Şahin, 2020). For this study, Cronbach's Alpha coefficient was calculated as 0.91.

Psychosocial Situation Rating Scale (PSRS) was developed by Güneş-Şan and Altay and is a measurement tool consisting of 31 items that measures Psychosocial Situation Rating based on parental report in children aged 3-6 years. For each item in the PSDD, there are 5-point Likert type options 0-'never', 1-'rarely', 2-'sometimes', 3-"often", 4-'always'. Based on the score given for each item, a minimum score of '0' and a maximum score of '124' can be obtained from the questionnaire. A low total score indicates that there is no risk for psychosocial problems in the child, while a high score indicates that there is a risk for psychosocial problems. Within the scope of the reliability of the scale, Cronbach's Alpha coefficient was calculated as 0.83 and test-retest reliability was calculated as 0.957 (Güneş-Şan & Altay, 2021). For this study, Cronbach's Alpha coefficient was calculated as 0.88.