The methodology for the 2010 pilot study by Liehr and Diaz, which examined the effect of mindfulness on minority children, included four main components:

• Experimental Design: A comparison of minority children receiving a mindfulness intervention (MI) versus a health education intervention (HEI), evaluated immediately pre- and post-intervention.
• Participants: 18 children recruited from a summer camp (average age 9.5 to 11.1 years; 71% boys; 64% from Caribbean and Central American countries), with one lost to follow-up.
• Intervention: The MI used a Mindful Schools program focusing on breath, mindful movement, and generosity. The HEI used standard health lessons on activity, healthy foods, and stress management. Both interventions consisted of ten 15-minute daily classes over two weeks.
• Measures: The Short Mood and Feelings Questionnaire (for depression) and The State Anxiety Inventory for Children (for anxiety symptoms).