When John bought himself a phone with a camera, he chose the one that could take 12-megapixel pictures over the one that could take 8-megapixel pictures. According to John, the picture resolution of the one he bought was much better than the alternative choice. In buying the camera phone with a better picture resolution, John's judgment is most likely affected by .

Just noticeable difference (JND)

Explanation:

Just Noticeable Difference also known as difference limen or difference threshold is the degree of change that must happen to a thing for the difference to be noticeable. It is the noticeable amount of difference observed in 50% of time. There fore in John's case, the difference in the picture quality of a 12 megapixel camera to 8 megapixel camera is just noticeable difference

The just noticeable difference (JND)

Explanation:

The just noticeable difference,  can also be referred to as the difference threshold; it is amount of something or stimulus intensity that must be changed in other to have a noticeable difference. It is the minimum amount of stimulation that a individual can detect half of the time. In other words, the smallest volume change or stimulus that an individual can sense. The just noticeable difference influences an individual's judgement and perception.

John's judgment on the phone to purchase was affected by just noticeable difference

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