Table 1.

Demographics and attendance of the 12 children taking part in the Happiness Inventors elective.

Participant number	Age (years)	Sex	Race/ethnicity	Session number
				1	2	3	4	5	6	7	8	9	10	11	12	13	14
1	12	Male	White	X		X	X	X		X		X	X	X	X
2	11	Female	African American	X	X	X	X	X	X	X	X	X	X	X	X	X	X
3	12	Male	White	X	X		X	X	X	X		X	X	X	X
4	11	Male	White	X	X		X	X	X	X		X		X		X	X
5	N/Aa	Male	Hispanic or Latino	X	X			X	X			X	X	X		X
6	11	Male	African American		X	X						X	X	X	X	X	X
7	N/A	Female	African American	X	X	X	X	X			X	X	X	X	X
8	N/A	Male	African American		X	X		X	X	X		X	X	X		X
9	12	Female	White	X	X		X	X	X	X	X	X	X	X	X	X	X
10	N/A	Female	Hispanic or Latino		X			X	X	X	X	X	X	X	X	X
11	N/A	Male	Hispanic or Latino	X	X	X		X		X		X			X	X
12	12	Female	White	X	X	X	X	X	X	X	X	X	X	X	X	X	X

^aN/A: not available.