By the time a student reaches the 8th grade they have likely been screened for gifted & talented aptitude. The CogAT test at this level becomes very difficult. It is our main curation for the 8th grade level.
Cognitive Abilities Test (CogAT) Practice Exams and Training Materials
CogAT Grade 8 Training App for iPhone and iPad
CogAT Grade 8 Training Guide for Kindle on Amazon