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Table 1 Means and standard deviations on WM measures, SDQ scales, and SWAN scales for males and females

From: Working memory and inattentive behaviour in a community sample of children

  Males Females
  Mean SD Mean SD
Digit span forward 8.40 1.96 7.83 2.10
Digit span backward 4.87 1.82 5.00 1.69
Spatial span forward 6.89 2.05 6.58 2.02
Spatial span backward 5.87 2.19 5.92 2.17
Key search forward 1.42 .89 1.50 .96
Key search backward 1.27 .85 1.46 .95
Key search screening 5.39 .92 5.21 .98
SDQ Emotional symptoms 1.81 1.91 1.75 1.90
SDQ Conduct problems 1.34 1.63 1.31 1.36
SDQ Hyperactivity – Inattention* 3.41 2.44 2.42 2.06
SDQ Peer relationship problems 1.69 1.97 1.43 1.63
SDQ Prosocial behavior 8.11 1.80 8.56 1.81
SWAN Inattentive* -.44 .93 -.92 .94
SWAN Hyperactive/Impulsive -.51 1.11 -.86 .96
  1. Note: SDQ = Strengths and Difficulties Questionnaire; SWAN = Strengths and Weakness of ADHD-symptoms and Normal-behavior. *Significant difference between males and females, p < .01
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