From:  Visuospatial attention and intelligence in children with ADHD-hyperactive type

 Mean RCPM scores (total and by cognitive factor) in the ADHD-H and control group.

RCPMs factorControls (mean ± SD)ADHD-H (mean ± SD)t (df = 136)p
Similarity (11 items)10.75 ± 0.4810.13 ± 2.871.47n.s.
Gestalt reasoning (15 items)12.98 ± 2.7810.89 ± 3.952.09< 0.05
Analogy (10 items)4.56 ± 1.542.10 ± 3.982.46< 0.05
Total score (36 items)27.58 ± 1.8123.02 ± 3.314.56< 0.001

RCPMs: Raven’s Colored Progressive Matrices; n.s.: non-significant; ADHD-H: attention deficit hyperactivity disorder-hyperactive type.