A psychologist presents a series of faint lights of varying intensities. Participants report whether they see each light or not. The psychologist is MOST likely trying to determine participants' thresholds. 1) Difference2) Sensory3) Absolute4) Physical

3. Absolute thresholds  

Explanation:

Absolute thresholds  -

It refers to the very minute level of stimulus which can be detected within half the time , is referred to as absolute thresholds .

The stimulus can be any smell , sound , taste , touch , sight etc.

The example is - It is used in sound detection .

This method is used in the field of neuroscience and research method .

Hence , from the given scenario of the question ,

The correct option is 3. Absolute thresholds  .

ABSOLUTE THRESHOLD.

Explanation: Absolute threshold can be defined as the smallest amount of stimulus-light, sound, touch, smell etc. that an individual can respond to. The absolute threshold is influenced by several factors such as an individual cognitive processes, expectations, motivations, their response to stimuli etc.

This is an example of what the psychologist is trying to determine in the participants. By presenting series of faint light, the psychologist is trying to determine the smallest amount of stimulus participant can respond to.

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