Table 2 Group mean and standard errors for age, socioeconomic status, nonverbal IQ, and language assessment scores

7.05 (.21)

7.07 (.13)

6.77 (.16)

F(2,28) = .78, p = .47

6.56 (.18)

6.09 (.29)

5.45 (.31)

F(2,28) = 3.93, p = .03*

116.11 (2.26)

108.09 (2.26)

118.55 (2.75)

F(2,28) = 5.16, p = .01*

122.22 (4.04)

114.27 (3.09)

116 (2.43)

F(2,28) = 1.64, p = .21

112.67 (3.01)

102.27 (2.05)

101.91 (2.35)

F(2,28) = 5.80, p = .01*

105.89 (3.17)

98.82 (3.15)

97.09 (2.51)

F(2,28) = 2.34, p = .12