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. Author manuscript; available in PMC: 2007 May 14.
Published in final edited form as: Mem Cognit. 2006 Dec;34(8):1754–1768. doi: 10.3758/bf03195936

Table 1.

Means (and SDs) for all Tasks in Each Age Group

Measure Children Adults
Auditory Span
 maximum correct 6.33 (1.12) 7.13 (1.09) *
 average number correct 4.03 (0.57) 4.51 (0.49) *
Visual Span
 maximum correct 5.10 (0.98) 6.31 (0.98) *
 average number correct 3.22 (0.57) 4.07 (0.56) *
Dual-Modality Task
 Mean Number of Items Correct
  Attended Auditory 3.59 (0.88) 4.26 (0.89) *
  Attended Visual 1.68 (0.71) 3.00 (1.01) *
  Ignored Auditory 3.35 (0.88) 3.36 (0.66) n.s.
  Ignored Visual 1.69 (0.65) 2.26 (0.67) *
  Auditory Alone 3.98 (0.84) 4.76 (0.80) *
 Vowel detection d’ 1.93 (0.90) 2.94 (0.94) *
Visual Array Capacity 2.41 (1.30) 3.59 (0.97) *
Stanford-Binet Intelligence Scale
 Vocabulary
  Raw 27.02 (3.12) 37.44 (3.85) *
  Age-adjusted 53.37 (6.03) 53.37 (6.70) n.s.
 Pattern Analysis
  Raw 34.12 (5.75) 39.60 (3.52) *
  Age-adjusted 55.69 (7.31) 53.71 (4.33) n.s.

Note. Visual Array Capacity refers to the measure of Cowan (2001).

*

Age difference t test, p < .05, 2-tailed.