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BuzzerBee

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Joined: 2015-02-15

Posts: 4,575

A Theory About Exams

Is it possible to calculate the answers of a multiple choice test if they are ordered using a pseudo-random algorithm?

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Different55

Forum Admin

Joined: 2015-02-07

Posts: 16,575

Re: A Theory About Exams

If you know the algorithm they used to generate random numbers and the seed (if any) they used, then yeah.

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"Sometimes failing a leap of faith is better than inching forward"
- ShinsukeIto

Zumza

Member

From: root

Joined: 2015-02-17

Posts: 4,658

Re: A Theory About Exams

I can count on my fingers how many multiple choice test, teachers gave me.
The most funny one was:

     return 1;

Yes all the correct answers was a)

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skullz17

Member

Joined: 2015-02-15

Posts: 6,699

Re: A Theory About Exams

If you know the algorithm they used to generate random numbers and the seed (if any) they used, then yeah.

^

I think that a lot of pseudo-random number generators use the time to create a random number (because the time is always changing, so you get a different number every time). So I think that it would be practically impossible to predict test answers in this way, if they used this kind of thing.

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thx for sig bobithan

Ratburntro44

Member

Joined: 1970-01-01

Posts: 1,383

Website

Re: A Theory About Exams

In other words, if you are able to replicate the pseudorandom numbers then you will know the pseudorandom numbers.

BEE

Member

Joined: 2015-03-14

Posts: 1,679

Re: A Theory About Exams

If you know the algorithm they used to generate random numbers and the seed (if any) they used, then yeah.

What if I made the test myself going "Hm... have I used 'c' too much? I think this one will be C!"

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Different55

Forum Admin

Joined: 2015-02-07

Posts: 16,575

Re: A Theory About Exams

If you know the algorithm they used to generate random numbers and the seed (if any) they used, then yeah.

What if I made the test myself going "Hm... have I used 'c' too much? I think this one will be C!"

In that case we'll need either a psychic or a stealthy midget.

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"Sometimes failing a leap of faith is better than inching forward"
- ShinsukeIto