I think your father would have done better if the material was fresh. It is common for "retakers" to score lower, due to atrophy of knowledge. (Old-timers joke quote: "I forgot more than you will ever know.") Knowledge: Use it or lose it.
http://www.ncpa.org/pi/edu/sept97b.html
The above is the information I was quoting. This issue is old, however still valid if not worse. Especially read the body, A-B students even with the easier rules of use of calculator and the like, are doing worse statistically. (The "easier- recentered" SAT is showing how bad the United States ED system is getting.)
Tidbit: Some college freshmen Math majors, can not multiply without a calculator. (They soon change majors however.

)
Note: I was not allowed to use a Calculator with the SAT.
I am an old-fart, btw. I remember when CPM, Unix, and early DOS days were considered new technology. Math majors were the only students to actually touch a computer. I remember the sign-in, included a process of placing my name on a list to use a computer.
EOF
PS: Hackers may have a basis on "Cruel and unusual punishment, after a judge takes their computer away."
Freedom of Speech: (I can not use a pen and paper anymore, your honour.) Whose handwriting hasn't deteriated from wide-spread use the QWERY keyboard?
Disclaimer: Easier SAT mileage as always may vary.
