. Author manuscript; available in PMC: 2008 Dec 3.

Published in final edited form as: Neuropsychology. 2008 Nov;22(6):765–775. doi: 10.1037/a0013373

Table 7.

Hierarchical Regression Analysis Relating Medical Variables to Gordon Task Performance in Children With SBM (Hypothesis 2a)

	Omission errors		Commission errors		Mean RT		Commission variability^a
Step and predictor	β	ΔR²	β	ΔR²	β	ΔR²	β	ΔR²
1. Age	−.36^*	.13	−.46^*	.22	−.41^*	.17	−.35^*	.12
2. ADHD status (yes/no)	.19	.03	.17	.02	.14	.02	.09	.04
3. Medical variables:		.02		.08^*		.05		.12^*
Lesion level (high/low)	−.05		.01		.03		−.06
Tectal beaking (present/absent)	−.13		−.31^*		−.15		−.35^*
Oculomotor abnormalities (present/absent)	.08		.06		.21^*		.16

Note. Scale for RT is given in deciseconds. SBM = spina bifida meningomyelocele; RT = reaction time.

Calculated as the standard deviation of the three block scores of commission errors.

p < .05.