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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: Child Dev. 2012 Dec 17;84(3):921–937. doi: 10.1111/cdev.12032

Table 1.

Descriptive Statistics

Wave 1
Wave 2
Wave 3
Wave 4
M SD M SD M SD M SD
Child Level
 Ties Per Child 6.56 (3.05) 6.77 (2.78) 6.48 (2.80) 6.01 (3.04)
Boys
 Masculine Activities 3.34 (1.14) 3.43 (1.33) 3.16 (1.08) 2.76 (1.11)
 Feminine Activities 1.85 (0.93) 1.75 (0.92) 1.56 (0.65) 1.62 (0.82)
Girls
 Masculine Activities 2.31 (1.05) 2.36 (1.00) 2.02 (0.91) 1.75 (0.91)
 Feminine Activities 2.90 (1.13) 2.94 (1.21) 2.90 (1.04) 2.88 (1.11)
Network Level b
 Number of children 283 301 282 272
 Jaccard Indexc - .402 .387 .474
 Masculine Activity
Homophily (Moran’s I)c .23 .21 .30 .30
 Feminine Activity
Homophily (Moran’s I)c .22 .27 .33 .42
 Sex Segregation OR 3.66 3.24 4.32 4.36
 95% CI [3.23, 4.14] [2.87, 3.65] [3.80, 4.92] [3.81, 4.99]

Notes. OR is Odds Ratio.

a Activity means are based on the integer coding of activity participation, which ranges from 1-5.

b Pooled across 18 classrooms.

cIndex of network stability compared to prior wave, ranges from 0-1.