This study aimed to compare the mean scores of mobile phone use, mobile phone addiction, and depressive symptoms at three-time points among Korean adolescents according to gender and to examine the differences in the long-term relationships among the three abovementioned variables between Korean boys and girls in a four-year period. Data for 1794 adolescents (897 boys and 897 girls) were obtained from three waves of the second panel of the Korean Children and Youth Panel Survey. Multigroup structural equation modeling was used for data analyses. The study findings showed that at each of the three-time points, Korean girls tended to use their mobile phones more frequently and were at a higher risk of mobile phone addiction and depressive symptoms than Korean boys. Significant changes were observed in the longitudinal relationships among phone use, mobile phone addiction, and depressive symptoms in Korean adolescents across time periods, but no gender differences were found in the strengths of these relationships. These findings contribute to expanding the knowledge base of mobile phone addiction and depressive symptoms among Korean adolescents.

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The purpose of this study was to adapt the Attitudes Toward Acute Mental Health Scale (ATAMHS) into the Korean language and culture and then to determine the reliability and validity of it by administering it to a sample of Korean nursing students and nurses. We conducted a psychometric evaluation that included a two-step item analysis (analysis and reanalysis), exploratory factor analysis and concurrent validity. The ATAMHS was translated into Korean by bilingual nurses. Then, 429 participants (224 undergraduate nursing students and 205 nurses, all with psychiatric experience) completed the translated version of the ATAMHS. The item analysis revealed that nine items correlated poorly with the rest; thus, they were deleted from the scale. The final Korean version of the scale, which we refer to as the Korean version of the ATAMHS (ATAMHS-K), contains 24 items. The ATAMHS-K showed good internal consistency. Exploratory factor analysis revealed three factors (professional perspective, semantic differentials and positive attitudes) that explained 39.5% of the variance. The ATAMHS-K had strong correlations with the Korean version of the Community Attitudes towards the Mentally Ill Scale, thus confirming the concurrent validity. Therefore, the ATAMHS-K demonstrated acceptable psychometric properties as a measure of attitudes toward acute mental health in Korean nursing students and nurses.

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