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What does size constancy refer to?

  1. Judging sizes by comparing with nearby objects

  2. Seeing objects as the same size regardless of the change in distance

  3. The physical size of objects changing with context

  4. Believing in the constancy of molecular sizes

The correct answer is: Seeing objects as the same size regardless of the change in distance

Size constancy refers to the perception of an object as maintaining the same size even when the distance from the object is changing. This phenomenon allows us to understand that an object does not physically change in size when it moves farther or closer to us. This ability to maintain a consistent size perception despite changes in distance is a crucial aspect of our visual perception system. The other options are incorrect as they do not accurately describe the concept of size constancy.