Will Computer Testing Affect Student Achievement?

Re:  New computer writing testing from NAEP.  This article is noteworthy for two reasons:  (1) our nation's students perform poorly on writing skills, (2) the writing test evaluated details about what, and when word processing tools were accessed.  Although we in Title I are not involved with writing skills, we will be using computers for student testing for the first time. There is a natural evolution to test students using computers so all of us need to pay attention to what details our students seem vulnerable.  Soon, all sections of the NAEP test will be comuterized as well as state testing. 
After our first experience with MAP testing, what have you noticed about our student's facility with computers?  What might need to be addressed with our testees?

NAEP Shows Most Students Lack Writing Proficiency.  Nora Fleming.9.13.12.  Education Week - Premium Week
http://www.edweek.org/ew/articles/2012/09/14/04naep.h32.html?tkn=RYTFPWOwkrlFhJJvB3C%2BxZ%2BaN4iVhknWc4rj&cmp=ENL-DD-NEWS1