Explanation of variables for the measurement-data-combined.csv data file

serial - unique subject identifier
reader - whether the participant passed the attention check. 1=pass
sign - indicates whether participants did gain or loss scenarios for intertemporal choice
duration_mins - completion time in minutes
first_measure - the first intertemporal choice measure that participants completed
choicecondition	- indicates whether participants did multiple staircase or titration for their choice task
Tlow - if the participant was in the titration condition, this indicates the order of presentation of options. Tlow=1 indicates that they started with the low items first
8: finM0 - Immediate financial  value of $300, with matching method. This is fixed at 300
finM1 - Matching financial value at a delay of one year
finM10 - Matching financial value at a delay of ten years
finM50 - Matching financial value at a delay of fifty years
12: envM0 - Value of immediate change in air quality, with matching method. 
envM1 - (Immediate) value of one year delayed change in air quality, with matching method. 
envM10 - (Immediate) value of ten year delayed change in air quality, with matching method. 
envM50 - (Immediate) value of fifty year delayed change in air quality, with matching method.
16: finC0 - Immediate value of $300 with the choice method. This is fixed at 300. 
finC1 - One year delayed value of $300 with the choice method (either titration or staircase). 
finC10 - Ten year delayed value of $300 with the choice method (either titration or staircase).
finC50 - Fifty year delayed value of $300 with the choice method (either titration or staircase).
20: envC0 - Value of immediate change in air quality, with choice method (either titration or staircase). 
envC1 - (Immediate) value of one year delayed change in air quality, with choice method (either titration or staircase). 
envC10 - (Immediate) value of ten year delayed change in air quality, with choice method (either titration or staircase). 
envC50 - (Immediate) value of fifty year delayed change in air quality, with choice method (either titration or staircase). 	
24: fungibility	- whether the participant believes that air quality is fungible
finRchosefut - whether the participant chose the real future $200 (rather than the immediate real $100)
MonthofBirth - month of birth
Gender - gender
28: Yearofbirth - year of birth
MaritalStatus - marital status
Householdincom - annual household income
smoke1 - the person is a smoker, 1, otherwise 0
Whatisyourhi - 	highest level of education
employment - current employment