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Balloon Analogue Risk Task (BART)

The experiment: ——

This is a simplified (and prettified) version of the BART task by Lejuez et al (2002). Participants have to blow up a balloon that they know will burst at some point. They ‘earn’ rewards for getting the balloons to be larger, but increase the risk of bursting it, in which case they earn no reward for that balloon. The question is, how many times does someone pump each balloon trying to optimise their rewards.

The measure is designed to quantify individual differences in risk-taking.

Analysing your data: ——

You should filter out data where the balloon burst and measure the number of pumps made for the remaining trials.

Notes: ——

WARNING: This is an advanced demo involving lots of code components

This can be extended to be more similar to the original paper by adding further colours of balloons with different bursting profiles.

IOWA Gambling Task (IGT) 4 Choices (2 Bad Deck-A&B, 2 Good Deck, C&D) For Gains/Losses conditions: GainLosConds.xlsx

Open sourced Implicit Association Test (IAT) as a demonstration. This version will run locally in PsychoPy (mouse input) or online (including touchscreen input)

test1

This experiment demonstrates how to create a rating slider that moves only when its marker is selected. Simply selecting other areas on the slider won't work.

The classic Stroop task.

This is a stroop task with 60 congruent and 60 incongruent trials. There are 4 colors (red, green, blue, purple). There is a practice trial before the actual task (16 trials).

Psychomotor Vigilance Task to be run in Pavlovia

The classic Stroop task.

fill the water cup

A forward and Backward Digit Span test for Working Memory The test adapts to participnts' answers and a score is calculated following Woods et al. (2012)