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Table 2 Means and standard deviations for dependent variables by group

From: Speech motor planning and execution deficits in early childhood stuttering

Group means (SD)

Single movement measures

CWS-male

CWS-female

CWNS-male

CWNS-female

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LL displacement (mm) Bob

8.4 (2.9)

7.4 (2.4)

9.1 (3.2)

8.2 (3.0)

10.0 (2.8)

8.8 (2.7)

8.8 (3.3)

8.1 (3.0)

LL displacement (mm) pup

6.2 (2.3)

6.3 (2.0)

6.5 (2.3)

6.4 (2.2)

7.1 (2.0)

7.2 (2.1)

6.1 (2.2)

6.4 (2.6)

LL velocity (mm/s) Bob

95.9 (36.4)

104.4 (36.6)

109.2 (46.3)

114.3 (41.1)

118.4 (36.8)

121.7 (37.1)

100.0 (39.3)

115.0 (43.9)

LL velocity (mm/s) pup

76.1 (32.8)

88.3 (28.3)

81.2 (36.4)

93.6 (33.0)

91.8 (30.2)

105.4 (31.4)

77.8 (30.5)

93.1 (38.3)

Syllable duration (s) Bob

0.16 (0.02)

0.12 (0.02)

0.15 (0.02)

0.12 (0.02)

0.14 (0.02)

0.13 (0.02)

0.15 (0.01)

0.12 (0.01)

Syllable duration (s) pup

0.14 (0.02)

0.15 (0.15)

0.14 (0.02)

0.12 (0.02)

0.13 (0.02)

0.12 (0.02)

0.13 (0.02)

0.12 (0.02)

Phrase measures

CWS-male

CWS-female

CWNS-male

CWNS-female

Displacement dynamic range (mm)

8.3 (2.4)

9.4 (3.2)

10.0 (2.5)

8.6 (2.5)

Velocity dynamic range (mm/s)

146.5 (42.8)

172.5 (56.4)

188.2 (47.8)

160.7 (51.3)

LA index BBAP

25.3 (4.6)

20.6 (5.6)

22.3 (4.1)

20.9 (4.2)

Duration BBAP (s)

1.2 (0.2)

1.2 (0.1)

1.1 (0.1)

1.1 (0.07)

LA index MBPP

25.2 (5.0)

20.3 (5.0)

22.4 (5.4)

21.6 (4.6)

Duration MBPP (s)

1.3 (0.2)

1.3 (0.2)

1.4 (0.3)

1.3 (0.2)

  1. LL lower lip, BBAP Buy Bobby a puppy, MBPP Mommy bakes potpies