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. Author manuscript; available in PMC: 2017 Jan 22.
Published in final edited form as: Vis cogn. 2016 Jan 22;23(8):957–988. doi: 10.1080/13506285.2015.1132803

Table 1.

Means and Standard Deviations of Participants' Demographic Information and Test Scores, Experiment 1

Younger Aa Younger Bb Olderc
Variable M SD M SD M SD
Age (years) 19.6 1.6 19.3 0.9 73.5 6.0
Acuity 20/22 1.2 20/20 0.7 20/33 1.7
Digit Span 21.8 3.3 18.7 3.4 18.7 2.9
Spatial Span 19.1 3.5 16.9 2.6 13.9 1.7
Digit Symbol Coding 87.0 11.5 84.5 7.8 57.1 11.6
a

n=16 (10 female, 6 male)

b

n=16 (9 female,7 male)

c

n=16 (12 female, 4 male)