Application of Weber’s Law: Measuring the Difference Threshold By doing a simple experiment with pebbles, you can show that the difference threshold (DL) gets larger as the standard stimulus gets larger. Follow the instructions below. Supplies : 2 paper plates: One labeled “comparison” and one labeled “standard.” A bunch of glass pebbles Tasks : One member of the group should serve as the “experimenter” and another should serve as the “participant.” You may wish to assign a third group member to the task of documenting the results. Your group will likely contain more than 3 people, so please feel free to take turns in the various roles. Instructions : Have the experimenter place 10 pebbles on a small paper plate (the standard) and 11 on another plate (the comparison). Have the participant close his/her eyes while the experimenter moves the plates around in the manner of a shell game. With eyes closed, have the participants pick up the plates and try to decide which plate is heavier (document the results). After making this judgment, repeated the
This is the end of the preview. Sign up
access the rest of the document.