Psychometric characteristics of the questionnaire of harmful use of digital device in children

The aim of this research was to investigate the psychometric properties of the questionnaire of traumatic use of digital tools in children. This research is practical and in terms of correlational method. The statistical population was all children aged 4 to 7 years in North Khorasan province who were selected to participate in the research in 1401. In this research, 254 people in the first study and 220 people in the second study. They were available sampled. These people were investigated in 2 studies. In the first study, they were only given a researcher-made questionnaire. In the second study, in addition to the above-mentioned questionnaire, two questionnaires of Matson's social skills(MESSY) (1983) and Parent-Child Relationship (CPRS) (1994) were also given to the subjectsTo check the validity of the content, the form was distributed among 5 professors and members of the psychology faculty, and cvi was calculated for the questionnaire. The principal components method by Varimax rotation led to the extraction of two factors. The two-factor model explained 54/65 percent of the data variance. The results showed that Cronbach's alpha for the whole questionnaire is 0/85. The Pearson correlation between the total score of this questionnaire with two scales of social skills and CPRS is -0.59 and -0.47, which shows that this questionnaire has a good criterion validity. Based on this, it seems that this questionnaire has a good criterion validity. The questionnaire of the harmful use of digital tools has good psychometric properties in Iranian society.