【作者(必填)】

• Kristjan K. Stefansson1⇑
• Steinunn Gestsdottir1
• G. John Geldhof2
• Sigurgrimur Skulason3
• Richard M. Lerner4
  

【文题(必填)】A Bifactor Model of School EngagementAssessing General and Specific Aspects of Behavioral, Emotional and Cognitive Engagement among Adolescents
【年份(必填)】2015

【全文链接或数据库名称(选填)】International Journal of Behavioral DevelopmentSeptember 25, 2015