We present the development and validation of the Digital Addiction Scale for Teenagers (DAST), describing the pilot study (N = 40 students) and main study (N = 4493) with Estonian students aged 11–19, in spring 2020. Our aim was to create a scale suitable for psychoeducational assessment of teenagers’ behaviour and feelings towards digital devices. We used the mixed research framework . Half of the study sample was collected before the coronavirus crisis (Sample I: 1972 students) and the rest during a distance-learning period (Sample II: 2521 students). We found that factor structure in both subsamples were similar. The DAST shows a negative relationship with emotional school engagement and life satisfaction and positive correlations with school burnout, learning difficulties and screen time. We discuss potential uses of the scale for assessing health-related digital competences.

我们介绍了青少年数字成瘾量表 (DAST) 的开发和验证，描述了试点研究（N = 40 名学生）和主要研究（N= 4493）与 11-19 岁的爱沙尼亚学生，2020 年春季。我们的目标是创建一个适合对青少年对数字设备的行为和感受进行心理教育评估的量表。我们使用了混合研究框架。一半的研究样本是在冠状病毒危机之前收集的（样本 I：1972 名学生），其余样本是在远程学习期间收集的（样本 II：2521 名学生）。我们发现两个子样本中的因子结构相似。DAST 显示与学校情感投入和生活满意度呈负相关，与学校倦怠、学习困难和屏幕时间呈正相关。我们讨论了该量表在评估与健康相关的数字能力方面的潜在用途。