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Main > ExamView Dynamic Content and Algorithms > Range Of Acceptable Answers.


Posted by: finman Dec 1 2005, 07:44 PM
In creating an algorithmic numeric problem, I would like to accept a range of answers as correct. The problems will be automatically graded. Let's say the problem will be marked correct if the student enters an answer that is (+/-) 1% around the exact answer. An example problem is given below:

The future value of $420 invested at 9% interest for 15 years is equal to $__________.

The exact answer is $1,529.84

Therefore, I would like to accept any answer that is between $1,545.14 (+1%) and $1,514.54 (-1%), rounded to two decimal places.

What is the best way to do this without having to input every possibility between the two values mentioned above? I experimented a bit with the "ceil" and "floor" functions, but that only gives me the two extremes. FV is defined as the exact answer, so I proceeded as follows: ceil(FV*1.01), floor(FV*.99). As I said, this only returns the two extremes, when I need all of the possibilities within that range.

Any suggestions would be greatly appreciated. I am using ExamView 5.0.

Thanks.

Jim

Posted by: Support DC Dec 2 2005, 10:20 AM
Currently, we do not offer that option. I will place that suggestion on the wish list for the next major upgrade of the software.

Posted by: lburns May 1 2008, 05:27 PM
what you can do is define the range of acceptable answers

Wrong1=range (FV*0.99, FV*1.01)
Wrong2=range (FV*0.99, FV*1.01)
Wrong3=range (FV*0.99, FV*1.01)

Now create a condition
isunique (CorrectAnswer, Wrong1, Wrong2, Wrong3)

This will ensure that all answers are within 99% and 101%. This will also ensure that all answers are unique.


Posted by: finman May 2 2008, 03:20 PM
Thanks, I'll give that a try, but not sure how it would work for open-ended (non-multiple choice) questions.

Jim

Posted by: gaapstar Oct 6 2008, 08:34 PM
When setting dynamic numerical questions in ExamView wouldn't it be fantastic if we could define the answer as:

equal to
between (two values)
greater than
greater than or equal to
less than
less than or equal to
not equal to
not between

This would, I think, solve all the problems in setting (complex) dynamic questions using randomly generated variables.

I have just been looking at a quiz generator which allows all of the above in numeric questions - yet does not have half the facilities of ExamView elsewhere.

Incidentally, are there any plans to develop ExamView any further? It has been a long time since there was an upgrade.

Posted by: Support DS Oct 7 2008, 09:34 AM
Thank you for the suggestion, we'll add it to the feature request database.

There are definitely plans to continue to release upgrades for ExamView and we have many exciting features that we are currently exploring. ExamView 6.2 for Win/Mac was just released this past February, so it hasn't been too long since the last update. :)

Posted by: gaapstar Feb 22 2010, 09:22 PM
It is now two years since your last update. I am sure a lot of us would be happier using ExamView if we felt it was being seriously supported by its new owner. Any news on when we can expect an update?

Posted by: support NP Feb 23 2010, 10:10 AM
We are expecting an update sometime this summer. I am sorry about the wait.

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