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首页> 外文期刊>Preventive Medicine: An International Journal Devoted to Practice and Theory >Development and evaluation of the Motivation to Limit Screen-time Questionnaire (MLSQ) for adolescents
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Development and evaluation of the Motivation to Limit Screen-time Questionnaire (MLSQ) for adolescents

机译：开发和评估青少年限制屏幕时间问卷的动机（MLSQ）

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Objective: The aim of this study was to design and evaluate a brief scale to assess adolescents' motivation to limit their screen-time using a self-determination theory (SDT) framework. Methods: The development and evaluation of the Motivation to Limit Screen-time Questionnaire (MLSQ) involved three phases. In Phase 1, experts in SDT were asked to review the content validity of the MLSQ items. In Phase 2, adolescent boys (N = 342, mean age = 12.7 ± .5. years) completed the MLSQ and the factorial validity of the model was explored. In Phase 3, adolescent boys (N = 48, mean age = 14.3 ± 1.3. years) completed the MLSQ on two occasions separated by 1-week. Phases 2 and 3 were conducted in New South Wales, Australia in 2012. Results: Twenty four SDT experts reviewed the original scale items. Validity coefficients associated with six of the original eight items exceeded the threshold value (V > .68, p< .01). In Phase 2, the revised three-factor (9-items) model provided a good fit to the data (SRMR = .07, CFI = .96). The intraclass correlation (ICC) values were .67 for amotivation and .70 and .82 for controlled and autonomous motivation, respectively. Conclusion: This study has provided preliminary evidence for the validity and reliability of the MLSQ in adolescent boys.
机译：目的：本研究的目的是设计和评估一个简短的量表，以使用自决理论（SDT）框架评估青少年限制其放映时间的动机。方法：限制屏幕时间动机调查表（MLSQ）的开发和评估涉及三个阶段。在阶段1中，要求SDT的专家审查MLSQ项目的内容有效性。在阶段2中，青春期男孩（N = 342，平均年龄= 12.7±.5。岁）完成了MLSQ，并探讨了该模型的阶乘有效性。在第3阶段，青春期男孩（N = 48，平均年龄= 14.3±1.3。岁）两次间隔1周完成了MLSQ。第2阶段和第3阶段于2012年在澳大利亚新南威尔士州进行。结果：24名SDT专家审查了原始的规模项目。与原始的八个项目中的六个相关的有效性系数超过了阈值（V> .68，p <.01）。在阶段2中，修改后的三因素（9个项目）模型非常适合数据（SRMR = .07，CFI = .96）。类内相关性（ICC）值分别为.67和0.70和.82和0.82。结论：本研究为青少年男孩MLSQ的有效性和可靠性提供了初步证据。

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