This page shows the core concepts of upward laddering, in software.
You can choose from three sets of images:
The software will begin by showing you a randomly chosen pair of images from the set that you haveselected. It will ask you to click on the image you prefer.
After you have clicked, it will ask you why you prefer that image.
Once you have given your reason, it will ask you why that reason matters to you.
You will then have the options of stopping, or of performing another laddering session.