Perhaps you should try some spelling variations:
significantly shorter » significantly higher (Expand Search), significantly greater (Expand Search), significantly better (Expand Search)
significantly lower » significantly higher (Expand Search)
shorter decrease » reported decrease (Expand Search), scores decreased (Expand Search), greater decrease (Expand Search)
lower decrease » linear decrease (Expand Search), larger decrease (Expand Search), teer decrease (Expand Search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( significantly lower decrease ) OR ( significantly shorter decrease )).