Intro: Talking Emotional IQ Box
Using littleBits, you can make an Emotional IQ Box (marshmallow test), a fridge light, and a box with an alarm to keep your stuff secure. Try different variations of outputs and inputs and change the settings on your timeout. Have fun!
Please visit my other instructable, "DIY littleBits" https://www.instructables.com/id/DIY-littleBits-Introduction/
The basic circuit is:
power + button + timeout + roller switch + buzzer
Clearly, I am just having fun putting marshmallows in my talking box. If you wanted to use this for a real psychological test for school, you would need to use a timer and follow a script. Here is an article about how effective the "Marshmallow Test" is at predicting future success: http://www.usnews.com/news/blogs/at-the-edge/2012/10/24/the-marshmallow-test-revisited