Study 1 (both files):

id: subject ID
trial: trial #
rt: response time in seconds
choice: =1 if sure option chosen, = 0 if risky option (50/50 lottery) chosen
win: winning amount in the 50/50 lottery
loss: losing amount in the 50/50 lottery
sure: amount in the sure option

Study 2:

subject: subject ID
delay: delay for the delayed amount in days
amount: the delayed amount in dollars
choice: = 1 if delayed amount chosen, = 0 if today amount ($25) chosen
rt: response time in seconds

Study 3:

id: subject ID
uself: unfair option, amount for self (subject)
fself: fair option, amount for self (subject)
uother: unfair option, amount for other (receiver)
fother: fair option, amount for other (receiver)
choice: = 1 if unfair option chosen, = 0 if fair option chosen
rt: response time in milliseconds