TABLE II.

Visual-attention study: Effect sizes for the differences between the inattention and attention conditions, shown separately for both speech/SSN conditions and both triplets.

Subject Number	Triplet 1		Triplet 2
	Inattentionminus Attention Without SSNsa	Inattentionminus Attention With SSNs	Inattentionminus Attention Without SSNs	Inattentionminus Attention With SSNs
Tone + Noise
L01	−0.33	−0.92	−1.14	1.80b
L02	0.02	−0.84	0.02	0.42
L03	−0.51	−1.92b	−1.15c	2.17b
L04	—	—	—	—
L05	−0.78	−0.88	−0.38	1.12c
L06	0.23	−1.63b	−0.05	0.38
L07	−0.94	−0.95	−0.62	0.31
L08	1.12c	1.30c	−0.50	0.25
Mean (absolute values)	0.56	1.21	0.55	0.92
Tone Alone
L01	1.51c	−0.79	0.48	0.52
L02	1.04	−0.60	0.18	0.20
L03	−0.75	−0.44	−0.47	−0.30
L04	—	—	—	—
L05	−0.32	−0.77	−0.44	−0.18
L06	0.43	−0.39	0.43	−0.41
L07	−0.49	−0.74	1.16c	−0.21
L08	1.05c	0.85	−0.17	−1.14c
Mean (absolute values)	0.80	0.65	0.48	0.42

^aSSN: speech-shaped noise stimuli, presented dichotically, and used as auditory distracters. When SSNs were used in the inattention condition (WITH), dichotic spoken digits were used in the corresponding attention condition.

^bp ≤ 0.01 (Implied statistical significance computed using a bootstrapping procedure.)

^cp ≤ 0.05 (Implied statistical significance computed using a bootstrapping procedure.)