A survey measures satisfaction scores on a scale of 1-5. Should you force the y-axis to include 0?

Question

A survey measures  satisfaction scores  on a scale of 1-5. Should you force the y-axis to include 0?

Answer

No, because truncating the axis reduces data-ink ratio.

Answer

No, because 0 is not a valid or meaningful value for the variable.

Answer

Yes, because every y-axis should start at 0.

Answer

Yes, because viewers expect zero as a baseline.

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