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Table 2.
Covariance between Responses on the MPL and LS Tasks
ControlTreatmentp-values of
(1)(2)H0: (1) = (2)
Method A: Number of risky choices    
Covariance with LS task 0.300 1.514*** 0.014 
Method B: First switch point    
Covariance with LS task 0.713* 1.670*** 0.076 
Method C: Average switch point    
Covariance with LS task 0.332 1.543*** 0.013 
Randomly generated MPL choices    
Mean of covariance with LS task −0.0017 −0.0027 0.4957 
Standard error of covariance with 0.3840 0.3879  
LS task 
N 101 92  
ControlTreatmentp-values of
(1)(2)H0: (1) = (2)
Method A: Number of risky choices    
Covariance with LS task 0.300 1.514*** 0.014 
Method B: First switch point    
Covariance with LS task 0.713* 1.670*** 0.076 
Method C: Average switch point    
Covariance with LS task 0.332 1.543*** 0.013 
Randomly generated MPL choices    
Mean of covariance with LS task −0.0017 −0.0027 0.4957 
Standard error of covariance with 0.3840 0.3879  
LS task 
N 101 92  

Method A defines MPL response as the total number of risky choices; method B defines MPL response as the number of risky choices made before the “first switch point.” Method C defines MPL response as the average switch point when the subject exhibits MSB. Randomly generated MPL choices use 10,000 bootstrap samples of MPL choices from the empirical distribution of the number of risky choices made in the MPL (coded using method B), separately for the control and treatment groups. Significant at *10%, **5%, and ***1%.

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