Which phenomenon does the following example illustrate?

When you begin your first year of college, the tuition is $12,000. At the beginning of your second year of college the tuition has been raised by $200, but you do not notice. However, upon returning for your third year of college, you do notice that the college has raised tuition by $2, 000.
Weber's Law
Signal detection
Absolute threshold
Illusion**

I am not sure with this one. Thank you!

4 answers

Disagree. Google your alernatives
Would the answer be Weber's Law?
For the record, it was Weber's Law :)
Right!