AUTHOR=Zhang Wu-Yang , Zhao Yan-Jie , Zhang Yao , He Fan , Pan Hong-Qing , Cheung Teris , Ungvari Gabor S. , Li Shu-Ying , Xiang Yu-Tao 

TITLE=Psychometric Properties of the Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR) in Depressed Adolescents

JOURNAL=Frontiers in Psychiatry

VOLUME=Volume 11 - 2020

YEAR=2020

URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2020.598609

DOI=10.3389/fpsyt.2020.598609

ISSN=1664-0640

ABSTRACT=Background: Accurate and reliable self-report measurement tools on examining depressive symptoms were scant in child psychiatry. This study assessed the psychometric properties of the Chinese Version of the Quick Inventory of Depressive Symptomatology - Self-Report (C-QIDS-SR) among depressed adolescents in China.
Methods: Adolescents with major depressive episodes or bipolar depressive episodes were assessed using the C-QIDS-SR. The structure validity of the C-QIDS-SR was estimated using principal component analysis with varimax rotation. 
Results: A total of 246 depressed adolescents were included. Cronbach’s alpha was 0.77. Correlation coefficient between baseline and endpoint assessments was 0.49 (p<0.001), whereas, the correlation coefficient between the C-QIDS-SR and the Hamilton Rating Scale for Depression–17 items (HAMD-17) was 0.63 (p<0.001). Principal component analysis with varimax rotation demonstrated the unidimensional structure of the C-QIDS-SR.
Conclusion: The C-QIDS-SR is an acceptable, reliable and valid instrument to measure depressive symptoms in adolescents.