Table 3.

Demographic Characteristics of the MTB Validation Study Samples

	Study 1 (N = 92)	Study 2 (N = 1021)	Study 3 (N = 168)
Missing Spelling Data % (n)	0 (0)	4.3 (44)	21.4 (36)
Age Mean (SD)	49.27 (17.65)	43.97 (21.24)	63.54 (12.10)
Age Range	[20, 84]	[18, 90]	[28, 87]
Demographic Characteristic	% (n)	% (n)	% (n)
Device Type
iOS	100.00% (92)	63.66% (650)	100.00% (168)
Android	—	36.34% (371)	—
Gender
Female	67.39% (62)	55.63% (568)	83.93% (141)
Male	32.61% (30)	44.37% (453)	16.07% (27)
Racial Identity
White or Caucasian	52.17% (48)	73.65% (752)	88.69% (149)
Black or African American	32.61% (30)	13.91% (142)	4.17% (7)
Asian	9.78% (9)	6.27% (64)	2.98% (5)
Native American or Alaska Native	—	0.69% (7)	0.60% (1)
Native Hawaiian or Other Pacific Islander	1.09% (1)	0.49% (5)	—
Middle Eastern or North African	—	0.88% (9)	—
Multiracial or More Than One Race	4.35% (4)	2.15% (22)	2.98% (5)
Ethnic Identity
Hispanic/Latino (Any Race)	1.09% (1)	14.69% (150)	7.14% (12)
Not Hispanic/Latino (Any Race)	98.91% (91)	85.31% (871)	92.86% (156)
Education Level
Less than High School	2.17% (2)	1.67% (17)	—
High School Diploma or Equivalent	54.35% (50)	32.03% (327)	0.60% (1)
Some College	20.65% (19)	35.16% (359)	25.60% (43)
4-Year College Degree	15.22% (14)	20.27% (207)	32.74% (55)
Graduate or Professional Degree	7.61% (7)	10.87% (111)	41.07% (69)