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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Dev Psychol. 2017 Nov 20;54(4):689–702. doi: 10.1037/dev0000460

Table 1.

Participant Demographics

Demographic Early Adolescent
N = 46		 Middle Adolescent
N = 73		 Adult
N = 70
Mean BL Age (SD) 10.76 (1.19) 15.72 (1.51) 20.57 (1.63)
BL Age Range 9–12 13–17 18–23
Percent Female 52 48 64
Percent Caucasian 87 93 81
Mean BL Maternal Years of Education (SD) 15.74 (1.57) 15.92 (1.75) 15.42 (2.44)
Mean BL Paternal Years of Education (SD) 16.33 (2.85) 15.95 (2.86) 16.15 (3.09)
Mean Waves Completed (SD) 4.11 (0.99) 3.58 (1.36) 2.79 (1.30)

Note. BL = baseline/year 0 of study. SD = standard deviation. Age is presented in years.