When Is the Median a Better Measure of Central Tendency

question 14

Multiple Choice

When is the median a better measure of central tendency than the mean?

• A)when several of the scores are the same score
• B)when there are a few scores that are much higher or lower than the others
• C)when the scores are normally distributed
• D)none of the above; the mean is always preferred

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Definitions:

Brightness Constancy

The perception of an object maintaining consistent brightness despite changes in the lighting conditions around it.

Size Constancy

The perception of an object as having a constant size, despite variations in the size of the visual field image caused by changes in viewing distance.

Retinal Image

The projection of visual imagery onto the retina, enabling the process of vision by converting light into neural signals sent to the brain.

Moon Illusion

A perceptual phenomenon where the moon appears larger near the horizon than it does higher up in the sky.