during inhalation and exhalation , does the ribcage move upward and downward or inward and outward.if inward and outward, in one test the options for the ribcage are upward and downward instead of inward and outward.

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At the time of inspiration, ribcage moves upward and outward while during expiration, it moves inward and downward.
Both the terms are correct and can be used simultaneously or one at a time.

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in goes inward and outward
 
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Both are correct
movement of the ribs happen in two ways 
1. Pump handle movement
2. Bucket handle movement
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