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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Psychol Methods. 2012 Nov 12;18(1):1–14. doi: 10.1037/a0030639

Table 5.

Number of Families Contributing Information from Two or More Siblings by Interview Occasion Pairing

Year 1 2 3 4 5 6 7 8 9 10 11 12
1 74
2 64 161
3 55 125 167
4 62 140 144 187
5 65 137 140 160 184
6 48 113 124 141 137 156
7 38 100 115 131 133 119 143
8 32 70 77 90 95 87 86 104
9 24 54 59 75 77 69 73 58 84
10 19 49 55 69 64 62 61 51 48 71
11 9 29 39 48 48 43 44 36 37 42 50
12 2 13 10 13 11 12 12 6 9 12 9 14