MEASURING PRECISION AND ACCURACY

Method of Limits

Method of Constant Stimuli

Method of Adjustment

PRECISION OR ACCURACY

Precision & Weber's Law

(In)accuracy & M-L Illusion

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OPERATING INSTRUCTIONS

1. The top line in the tutorial is a standard of a fixed length.
2. The bottom line in the tutorial is adjustable and is called the comparison stimulus.
3. Click the arrow button pointing left to make the comparison shorter.
4. Click the arrow button pointing right to make the comparison longer.
5. Click the arrow button labelled "Next Trial", to advance to the next trial.
6. Click the "Menu" button to quit the trials.

You will now have 6 practice trials...