Because learned patterns of behavior, such as the association of a green light with "go" or the expectation that swit...

Brandy on June 29, 2022

Explain please

Can someone explain why E is correct? Thank you.

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Emil on July 2, 2022

Hi Brandybailey93,

Our general principle is that designers should design machines to account for common learned behaviors (like flipping up for on) to make machines that are not dangerous or inefficient.

E violates this principle because both red and yellow are associated with caution, stopping/slowing, or negative things, albeit in varying degrees. One would generally associate the color green with starting, and the colors red or yellow with stopping and pausing.

This question is old (mid 1990s), and relies on certain cultural assumptions that may not be universal.