A correct conclusion for the text above would be the follow...

For these reasons, the Twenge’s study demands that libraries prioritize reading for pleasure -- if book users are to be both competent and willing readers.

Due to the scarcity of researches in this field and to do justice to the complexity of the issue, Twenge found it necessary to examine other issues, such as reading motivation and choice.

In conclusion, reading for pleasure has been poorly explored in America but Twenge’s study proves undoubtedly that promoting reading can have a major impact on children and adults and their future. “The imbalance between reading and television, for example, has a significant effect on academic results”, the APA researchers found.

These findings give Twenge, as a university faculty member, a new perspective on the next generation as they approach college age. “Think about how difficult it must be to read even five pages of an 800-page college textbook when you've been used to spending most of your time switching between one digital activity and another in a matter of seconds”.