Balloon Analog Risk Task

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Screen shot of PEBL's BART Task

Contents

[edit] About

PEBL implementation of a task originally by Lejuez, which is available for free download from http://www.addiction.umd.edu/CAPERWebSite/downloads.html Users may prefer PEBL version because of ability to tweak, change sampling characteristics, or to integrate with other PEBL tasks.

[edit] Notes

This task is located in battery/BART/BART.pbl

This is a fairly straight-forward implementation of the task. It includes animation and sound playback for a more engaging task.

[edit] Options

Variables that can impact the task:

  gAllowAutoPump <- 0      ##Does the balloon continue to pump up while holding the button down?
  gStartBalloonSize <- 10  ##Size in pixels of initial balloon
  gMoneyPerPump <- .05     ##Money per pump
  lifes <- [8,16,128]      ##Max number of pumps for the three balloon sizes
   
  ##Colors for the three balloon types:
  cols <- [MakeColor("darkorange"),Makecolor("gold"),MakeColor("darkslateblue")]

[edit] Data Output

Data are saved into a .csv file with the following columns:

subnum	trial	type	life	pumps	total	collected	burst	time
  • subnum: participant code given
  • trial: trial number
  • type: balloon type (color); 1=orange, 2=gold, 3=blue
  • life: number of lives the particular chosen balloon would have if pumped until burst
  • pumps: number of pumps given
  • total: total amount of money earned
  • collected: amount collected on that trial
  • burst: whether the balloon burst
  • time time (in ms) spent on the trial

[edit] References

Lejuez, C. W., Read, J. P., Kahler, C. W., Richards, J. B., Ramsey, S. E., Stuart, G. L., Strong, D. R., & Brown, R. A. (2002). Evaluation of a behavioral measure of risk-taking: The Balloon Analogue Risk Task (BART). Journal of Experimental Psychology: Applied, 8, 75-84.

[edit] See Also

PEBL Test Battery

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