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Table 2 Stage 1 analysis results summary

From: Attentional influences on neural processing of biological motion in typically developing children and those on the autism spectrum

  

P1

(136-156 ms)

N1

(207-227 ms)

P2

(370-450 ms)

  

F (p value)

Main effects

Group

df (1,49)

.209 (p = .649)

.000 (p = .992)

.239 (p = .627)

Hemisphere

df (1,49)

.202 (p = .655)

4.061 (p = .049)*

.718 (p = .401)

Task

df (1,49)

2.069 (p = .157)

.208 (p = .650)

.007 (p = .934)

Motion-type

df (2,98)

.716 (p = .491)

.360 (p = .699)

2.262 (p = .110)

Within subjects interactions

Hemisphere x Task

df (1,49)

.292 (p = .592)

.558 (p = .458)

.385 (p = .538)

Hemisphere x Motion-type

df (2,98)

1.088 (p = .331a)

.297 (p = .717a)

2.023 (p = .147a)

Task x Motion-type

df (2,98)

.578(p = .563)

2.566 (p = .094)

.057 (p = .945)

Hemisphere x Task x Motion-type

df (2,98)

.217 (p = .756a)

.471 (p = .606a)

.178 (p = .762a)

Within subject x between subject interactions

Hemisphere x Group

df (1,49)

.693 (p = .409)

.001 (p = .979)

3.622 (p = .063)

Task x Group

df (1,49)

.063 (p = .803)

.227 (p = .636)

.003 (p = .856)

Motion-type x Group

df (2,98)

3.108 (p = .049)*

2.944 (p = .057)

.552 (p = .568)

Hemisphere x Task x Group

df (1,49)

.961 (p = .386)

.347 (p = .558)

.040 (p = .842)

Hemisphere x Motion-type x Group

df (2,98)

.934 (p = .380a)

.826 (p = .429a)

.039 (p = .938a)

Task x Motion-type x Group

df (2,98)

.961 (p = .386)

4.780 (p = .016a)*

6.818 (p = .002)**

Hemisphere x Task x Motion-type x Group

df (2,98)

.752 (p = .448a)

1.226 (p = .298a)

.403 (p = .600a)

Covariates

Age

df (1,49)

14.874 (p < .001)**

1.270 (p = .265)

4.169 (p = .047)*

IQ

df (1,49)

.520 (p = .649)

.009 (p = .923)

.087 (p = .769)

  1. Bold values indicate significant results (p < 0.05)
  2. Degrees of freedom (df) reported as uncorrected (sphericity assumed) values though where appropriate p values marked as reflecting
  3. nNT = 31,nASD = 22
  4. aGreenhouse–Geisser correction for violation of Mauchly’s test of sphericity
  5. *p < .05, **p < .01