Examination of Web-Based Single-Session Growth Mindset Interventions for Reducing Adolescent Anxiety: Study Protocol of a 3-Arm Cluster Randomized Controlled Trial.

First, as this study does not exclude individuals based on the severity of their anxiety symptoms, the efficacy of the interventions to reduce anxiety symptoms of students without anxiety or with low levels of anxiety may not be significant and thus affects the statistical significance on the whole.

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