The Tween to Teen staff identified 804 eligible families. Of these, 504 (63%) agreed to participate and 452 completed the Wave 1 interview (90% of those who agreed and 56% of those eligible). Participants did not differ significantly from non-participants on race, age-cohort, or mother’s education (see Donovan & Molina, 2008). Recruitment quotas for a diverse community sample of families were met: 92 eight-year-old boys, 118 eight-year-old girls, 122 ten-year-old boys, and 120 ten-year-old girls; 73% (331/452) were European-American; 24% (110/452) were African-American; 2% (11/452) were Other. Biological mothers participated in all families; 23% (n=106) of them were single; 92% (320/346) of household fathers/partners participated. The diversity of the sample was reflected in mother’s education: 2% had partial high school education; 20% graduated from high school; 11% had vocational-technical training; 25% had partial college education; 31% graduated from college; 10% had post-graduate education. Demographic advantage was calculated for modeling purposes, with advantage = two-parent family and/or mother having received at least some college education (n=237/452 or 52.4%). Additional details regarding recruitment of participants may be found in Donovan and Molina (2008).
