The performance of all the CISA candidates taking the exam is pooled
and the lowest is converted to scale of 200 and highest to scale of
800. For eg: if the lowest score is 25%, it is converted to scaled
score of 200 and if the highest is 85% it is converted to 800. and if
you have scored 70%, your scaled score could be:
25% = 200
85% = 800, thus after 25%, every % is equal to score of 10 which is
derived from (800-200) / (85-25)
Hence, 70% = 200 + (70-25) 45*10 ie scaled score of 650, you will
pass as the scored required to pass is 450
If you have scored 80%, then, scaled score is = 200 + (80-25) 55 * 10
ie 750, you will pass
If you have scored 49%, then scaled score is = 200+
(49-25) 24 * 10 ie 440, you will have to write the exam again.
If you have scored 85%, then scaled score = 200 +(85-25)
60 * 10 ie 800, you have topped the exam.
The above is a simplistic explanation of the scaled score system. You
need to remember that the overall performance of the candidate may
vary, it could be possible that the lowest is 45% and highest is
95%,
then your 70% will have to be converted as
45% = 200 and 95% = 800, thus after 45%, every % is equal to score of
12 which is derived from (800-200) / (95-45)
Hence, 70% = 200 + (70-45) 25*12 ie scaled score of 500, you will
pass as the scored required to pass is 450
If you have scored 80%, then, scaled score is = 200 + (80-45) 35 * 12
ie 620, you will pass
If you have scored 60%, then scaled score is = 200+
(60-45) 15 * 12 ie 380, you will have to write the exam again.
If you have scored 95%, then scaled score = 200 +(95-45)
50 * 12 ie 800, you have topped the exam.
There are two type of events in the CISA exam. Things you can control
and things you cannot control. Things you can control is your
performance. Things you cannot control is other's performance. Hence,
it is best to focus on things in your control (your performance) and
not worry about things not in your control (other's performance).
As a thumb rule, we suggest to aim at getting 85% to 90% to ensure
success.
You may please note that the above explanation is our personal
opinion
and is not confirmed or ratified by ISACA.
Wish you all the best.
Regards
Asad Ejaz,ACCA