Table 5.

Group comparisons: Mean and SD scores.

Measures	TD		SSD-only		SSD+LI		F	p value	η2
	M	SD	M	SD	M	SD
Story structure
Story grammars	42.90	23.28	40.65	25.05	25.95	20.46	3.2	0.048*	0.10
High point	4.75	1.77	4.70	1.90	3.85	2.30	1.28	0.287	0.04
Comprehension questions
Factual questionsa,b	76.50	32.75	73.25	27.91	39.80	31.63	8.68	0.001*	0.23
Inferential questionsa,b	51.60	38.23	51.50	33.28	23.15	28.67	4.76	0.012*	0.14
Linguistic complexity
Number of T-units	9.00	3.01	8.75	3.92	8.65	4.37	0.05	0.956	0.00
Mean length of T-unit	5.41	2.53	5.08	2.0	4.46	1.95	1.0	0.376	0.03
Number of words	50.90	29.42	51.95	30.23	45.5	33.06	0.25	0.780	0.01
Number of different words	29.05	12.97	30.80	14.09	24.4	13.99	1.17	0.319	0.04
Articulatory complexity
2-syllable words	6.60	4.26	5.70	3.92	5.65	4.75	0.31	0.738	0.01
3-syllable words	0.50	0.89	0.55	1.43	0.70	1.42	0.13	0.874	0.00
Examiner support
Move forward cues	1.5	1.43	1.85	1.98	1.45	1.39	0.36	0.699	0.01
Affirming cues	4.8	4.36	5.35	4.31	4.60	3.57	0.18	0.836	0.01
Leading cues	3.8	2.63	3.75	3.29	3.75	2.84	0.0	0.998	0.00
Information cues	0.30	0.57	0.40	0.82	0.50	0.69	0.41	0.668	0.01
Number of cues	11.40	10.57	11.4	7.08	10.30	7.12	0.11	0.893	0.00
Requests for help	1.25	1.02	1.45	1.4	1.00	1.26	0.67	0.517	0.02
Fraction spontaneous	0.56	0.34	0.58	0.39	0.63	0.32	0.22	0.803	0.01
Content accuracy
Content items	30.95	20.73	30.55	18.74	17.35	14.64	3.61	0.033*	0.11
Correct utterancesb	6.35	3.48	7.15	3.68	4.40	3.50	3.17	0.050*	0.10
Relevant, incorrect utterances	0.65	0.93	0.40	0.68	1.00	1.41	1.63	0.204	0.05
Irrelevant utterances	0.15	0.37	0.05	0.22	1.05	2.33	3.25	0.046*	0.10

^aThe control group differs from the SSD+LI group.

^bThe SSD-only group differs from the SSD+LI group.

^*p < .05.