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Table 3 Results of GEE and effect size for measures of Working Memory and ADHD symptoms

From: Metacognitive interventions in text production and working memory in students with ADHD

Variables Time Mean score   p value
Combined WM General ES Group Time Interaction
Mean   SE Mean   SE Mean   SE  
RAVLT A7a 1 9.3   0.7 8.7   0.6 9.0 A 0.5 0.19 0.552 < 0.001 0.327
2 10.7   0.7 10.7   0.5 10.7 B 0.4 0.01    
3 11.0   0.5 10.3   0.7 10.6 B 0.4 0.27    
General 10.3   0.5 9.9   0.5        
DI-backwarda 1 8.8   0.5 9.3   0.4 9.0 A 0.3 0.27 0.209 0.049 0.753
2 8.2   0.4 8.9   0.5 8.6 B 0.3 0.34    
3 8.5   0.6 9.5   0.5 9.0 ab 0.4 0.38    
General 8.5   0.4 9.3   0.4        
SS-backwardc 1 4.7 aA 0.2 5.3 aB 0.2 5.0   0.1 0.59 0.794 0.759 0.014
2 5.2 aA 0.2 5.0 aA 0.2 5.1   0.1 0.23    
3 5.0 aA 0.2 4.9 aA 0.2 4.9   0.2 0.20    
General 5.0   0.2 5.0   0.2        
Inattentionc 1 1.9   0.11 1.9   0.1 1.9 A 0.09 0.00 0.928 < 0.001 0.896
2 1.4   0.12 1.4   0.2 1.4 B 0.1 0.04    
General 1.7   0.10 1.7   0.1        
Hyperactivity/impulsivityc 1 1.2 aA 0.2 1.0 Ba 0.2 1.1   0.1 0.33 0.692 0.003 0.035
2 0.8 bA 0.2 0.9 Aa 0.2 0.8   0.1 0.14    
General 1.0   0.2 0.9   0.2        
Total symptomsc 1 1.6   0.1 1.4   0.1 1.5 A 0.08 0.24 0.816 <0.001 0.194
2 1.1   0.1 1.2   0.2 1.1 B 0.09 0.11    
General 1.3   0.1 1.3   0.1        
  1. Time: 1: pretest; 2: immediate posttest; 3: deferred post-test; general: mean between evaluation times. Different lowercase letters represent statistically different mean values, by comparing time and setting group. Different uppercase letters represent statistically different mean values, by comparing groups and setting times
  2. IG-Combined combined intervention group, IG-WM Working Memory Intervention Group, SE standard error, ES effect size
  3. aPoisson distribution
  4. bBinary logit distribution
  5. cNormal distribution