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Table 4 Standard deviation of family innovations by sibling characteristics

From: The time-varying role of the family in student time use and achievement

  Math Reading   Free Computer TV
  score score Homework reading use watching
Gender       
 Male pair 0.183 0.202 0.206 0.253 0.224 0.313
 Female pair 0.168 0.189 0.222 0.271 0.271 0.296
 Mixed pair 0.165 0.180 0.201 0.232 0.230 0.260
Grade difference       
 0 years 0.209 0.217 0.258 0.287 0.309 0.299
 1 year 0.168 0.193 0.218 0.245 0.240 0.300
 2 years 0.169 0.186 0.202 0.252 0.235 0.288
 3 years 0.159 0.175 0.187 0.233 0.217 0.262
 4 years 0.154 0.174 0.175 0.222 0.200 0.245
All 0.170 0.188 0.207 0.248 0.239 0.284
  1. Sources: North Carolina Education Research Data Center and North Carolina State Center for Health Statistics. All variables in standard deviation units