Table 7.

Bootstrapped regression coefficients, odds ratios and confidence intervals for eighth grade best and near best models.

Model #	Predictor	β	B	95% CI B		Odds Ratio	95% CI Odds Ratio
1	PD	.47	.84	.40	1.28	2.31	1.49	3.59
	GC	.42	.73	.27	1.18	2.07	1.31	3.27
	NI	.38	.65	.27	1.03	1.91	1.31	2.79
	SI	.23	.34	.31	.99	1.40	1.36	2.68
	ME	.21	.36	.06	.77	1.43	1.06	2.16
2	PD	.43	.77	.33	1.21	2.15	1.39	3.34
	GC	.38	.66	.21	1.10	1.93	1.23	3.01
	NI	.36	.60	.25	.96	1.83	1.28	2.61
	RN	−.26	−.44	−.88	−.01	.64	.42	.99
	SI*	.24	.36	−.26	.97	1.43	.77	2.65
3	PD	.48	.85	.36	1.35	2.35	1.43	3.85
	SI*	.38	.59	−.05	1.23	1.80	.95	3.40
	NI	.36	.62	.20	1.04	1.86	1.23	2.82
	RN	−.27	−.48	−.93	−.03	.62	.40	.98
	ME*	.21	.34	−.11	.79	1.40	.89	2.21
4	PD	.47	.82	.38	1.27	2.28	1.46	3.55
	GC	.45	.76	.29	1.23	2.14	1.34	3.43
	NI	.38	.66	.27	1.05	1.93	1.32	2.84
	SI*	.27	.41	−.23	1.05	1.51	.80	2.86
	ME*	.21	.36	−.06	.77	1.43	.94	2.16
	NE*	−.13	−.23	−.53	.07	.80	.59	1.08
5	PD	.45	.79	.32	1.26	2.21	1.38	3.54
	GC	.41	.70	.18	1.22	2.01	1.20	3.37
	NI	.38	.65	.25	1.04	1.91	1.29	2.82
	SI*	.24	.35	−.32	1.02	1.42	.73	2.78
	ME*	.20	.33	−.08	.75	1.40	.92	2.12
	NE*	−.16	−.26	−.64	.11	.77	.53	1.12
	NC*	.08	.12	−.31	.55	1.13	.73	1.72
	OV*	.07	.13	−.45	.70	1.14	.64	2.01

^*The regression coefficient (β) is considered to be nonsignificant within the model when its 95% confidence interval includes zero.

Note. PD = Phoneme deletion; GC = Grammatical completion; NI = Nonverbal IQ; SI = Sentence imitation; ME = Mother’s education level; RN = Rapid naming; OV = Oral vocabulary; NE = Narrative expression; NC = Narrative comprehension