"To vote a split ticket requires a knowledge of the qualifications of every candidate." is wrong, because there's no such requirement.
"An independent is a voter with no party affiliation." is wrong. An independent is a politician, not a voter.
"Only the names of the candidates for the highest offices appear on the long ballot.
" is wrong. All names appear.
"One way to cut down on the number of elections would be to lengthen the term of office for elected officials.
" is true, since there are 2 year terms.
"The whole House of Representatives and one-third of the Senate are elected every two years." this is true. Senators go through election every 6 years but there's a division of 3 classes. So elections for Senate happen every two years just like for all congressmen. Making "All state officials are elected every two years." also true.
And finally, the President and Vice President have terms of the same duration, which is 4 years, so "The President and Vice President are elected once every four years." is also true
