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Table 3. 
All Bivariate Correlations (Spearman's Rho) Between Laterality Indices Obtained from Mean Power Averaged across Resting-state qEEG Networks and L2 Outcome Variables
 L2 Learning RatePosttest ScoresSpeech AttemptsCorrect Speech
Frontal 
theta (4–7.5 Hz) .242 (37) .219 (37) .227 (37) .243 (37) 
alpha (8–12.5 Hz) .440 (37)** .245 (37) .184 (37) .211 (37) 
beta (13–29.5 Hz) .119 (37) −.029 (37) .126 (37) .305 (37) 
gamma (30–40 Hz) .053 (37) −.250 (37) −.082 (37) .077 (37) 
  
Posterior 
theta (4–7.5 Hz) .208 (35) −.044 (35) −.058 (35) −.051 (35) 
alpha (8–12.5 Hz) .404 (35)* .139 (35) −.215 (35) −.061 (35) 
beta (13–29.5 Hz) .339 (35)* .107 (35) −.107 (35) −.012 (35) 
gamma (30–40 Hz) .014 (35) −.042 (35) −.204 (35) −.129 (35) 
 L2 Learning RatePosttest ScoresSpeech AttemptsCorrect Speech
Frontal 
theta (4–7.5 Hz) .242 (37) .219 (37) .227 (37) .243 (37) 
alpha (8–12.5 Hz) .440 (37)** .245 (37) .184 (37) .211 (37) 
beta (13–29.5 Hz) .119 (37) −.029 (37) .126 (37) .305 (37) 
gamma (30–40 Hz) .053 (37) −.250 (37) −.082 (37) .077 (37) 
  
Posterior 
theta (4–7.5 Hz) .208 (35) −.044 (35) −.058 (35) −.051 (35) 
alpha (8–12.5 Hz) .404 (35)* .139 (35) −.215 (35) −.061 (35) 
beta (13–29.5 Hz) .339 (35)* .107 (35) −.107 (35) −.012 (35) 
gamma (30–40 Hz) .014 (35) −.042 (35) −.204 (35) −.129 (35) 

ns are in parentheses.

*

p < .05.

**

p < .01.

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