Skip to main content

Table 1 Characteristics of current sample (DD, controls)

From: Mathematics anxiety in children with developmental dyscalculia

Characteristic DD Controls F (1,34) p-value
Age (yrs) 10.6 (1.6) 9.6 (1.5) 3.87 ns (> 0.05)
Gender (% female) 61% 55% Χ2 ns
K-BIT IQ (ss) 91.0 (18.9) 99.8 (19.5) 1.8 ns
*WJIII Math Computation (ss) 84.2 (8.5) 95.6 (11.2) 12.3 .001
*WJIII Math Fact Fluency (ss) 71.6 (7.3) 92.2 (9.4) 53.9 .000
*Dyscalculia Screener Dot Enumeration (stanine) 1 3.0 (1.5) 5.6 (1.7) 20.3
(df: 1, 32)
.000
*Dyscalculia Screener Number Comparison (stanine) 3.8 (1.5) 5.3 (1.9) 6.8
(df: 1, 32)
.01
Dyscalculia Screener Addition (stanine) 3.3 (1.3) 3.8 (1.6) < 1
(df: 1, 32)
ns
Dyscalculia Screener Simple Reaction Time (stanine) 2.8 (1.2) 3.9 (1.4) 6.7
(df: 1, 32)
.01
WJIII Word Attack (ss) 99.8 (11.4) 106.2 (10.5) 2.7 ns
WJIII Letter-Word Identification (ss) 95.4 (13.0) 103.8 (11.1) 3.9 ns (> .05)
WJIII Reading Fluency (ss) 94.4 (16.4) 105.9 (15.4) 4.5 ns
Conners Parent DSM-IV Inattention (T-score) 60.9 (10.4) 58.6 (13.1) < 1 ns
Conners Parent DSM-IV Hyperactivity/Impulsivity (T-score) 52.2 (12.4) 57.2 (12.6) 1.4 ns
Conners Teacher DSM-IV Inattention (T-score) 61.1 (6.2) 55.5 (6.4) 5.7 .02
Conners Teacher DSM-IV Hyperactivity/Impulsivity (T-score) 57.9 (14.3) 52.4 (9.8) 1.3 ns
RCMAS Total Anx T-score 48.0 (11.4) 42 (10.4) < 1 ns
Working Memory     
Cantab Spatial Span For (ss) 55 (0.8) 54 (1.0) < 1 ns
Cantab Spatial Span Back (ss) 60 (0.7) 68 (.7) 2.1 > .1
Letter Span Forward (raw) 3.6 (1.1) 3.4 (.9) < 1 ns
Letter Span Backward (raw) 1.6 (0.8) 1.6 (.8) < 1 ns
  1. * Four tests used to define Dyscalculia, plus IQ and reading in normal range
  2. 1Stanine scores: stanine score of 1 = standardized score [SS] < 74; 2 = SS 74-81; 3 = SS 82-88; 4 = SS 89-96; 5 = SS 97-103; 6 = SS 104-111, and so on.