Gregory's Misapplied Size Constancy Scaling Explanation of the Müller-Lyer Illusion

question 39

Multiple Choice

 Gregory's misapplied size constancy scaling explanation of the Müller-Lyer illusion _____.

• A) has difficulty in explaining the "dumbbell" version of the illusion
• B) can easily explain three-dimensional versions of the illusion
• C) is incompatible with the size-distance scaling equation
• D) has been unchallenged as the only viable explanation of the illusion

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Definitions:

Income Effect

The variation in income for a person or an economy and its impact on the demand for a specific good or service.

Perfect Substitutes

Goods that can serve the same purpose perfectly, where consumers are indifferent between them and will select based on price.

Giffen Good

A product that paradoxically sees an increase in demand as its price increases, violating the basic law of demand due to the income effect overshadowing the substitution effect.

Inferior Good

A type of good whose demand decreases as the income of consumers increases, opposite of a normal good.