Psychology Mariska is participating in a research study to determine whether she can detect the difference between two amounts: a circle containing two dots versus a circle with no dots inside. The researcher shows her the empty circle repeatedly until she looks away while it is on the screen. Then the researcher shows Mariska the circle with two dots in it and records how long she stares at it. What research method is being used?

The research method is known as habituation.

Explanation:

In Psychology, habituation refers to the lessening of a physiological or emotional response to a certain stimulus after a repeated exposure to it. This occurs because the individual gets used to the stimulus to the point where it may not be noticeable, it tends to be ignored.

This can clearly be seen in the experiment; Mariska is being exposed to the circles with the dots so she will soon get used to it and might not notice it further.