From:  Can gamified behavioral change mental health mobile apps reduce students’ anxiety and improve well-being? An efficacy study

 Experimental group and control group students’ anxiety levels based on the pre-test.

Anxiety level based on GAD-7Experimental groupControl group
FrequencyPercentage (%)FrequencyPercentage (%)
No anxiety (score 0–4)417.4%1330.2%
Mild anxiety (score 5–9)730.4%1330.2%
Moderate anxiety (score 10–14)1043.5%1330.2%
Severe anxiety (score 15–21)28.7%49.3%
Total23100%43100%

GAD-7: Generalized Anxiety Disorder-7.