Reduced Scoring

WeBWorK has a Reduced Scoring Period, that is a period before the due date during which all additional work done by the student counts at a reduced rate.

Here is how the Reduced Scoring Period works. There are two parameters, the reducedScoringPeriod which is the length in minutes and the reducedScoringValue, a number in [0,1] which gives the value of work done in Reduced Scoring Period. Suppose the reducedScoringPeriod = 60*24*2 (two days) and the reducedScoringValue = .5. On the page listing the problems, the student will see a message like:

This assignment has a Reduced Scoring Period that begins 11/08/2009 at 05:00am EST and ends on the due date, 11/10/2009 at 05:00am EST. During this period all additional work done counts 50% of the original.

Note: if Reduced Scoring Period = 0, there is no message.

Before the Reduced Scoring Period everything is exactly like a normal problem. For example if a student does 6 parts of a 10 part question correctly, they see

You received a score of 60% for this attempt.
Your overall recorded score is 60%.

During the Reduced Scoring Period the student sees the message

Note: You can earn partial credit on this problem.
You are in the Reduced Scoring Period: All additional work done counts 50% of the original.

Suppose during the Reduced Scoring Period they attempt the problem again and get 9 of the 10 parts correct. They see

You received a score of 90% for this attempt.
Your overall recorded score is 75%.

Finally if they go back to the problem and get all 10 parts correct they see

You received a score of 100% for this attempt.
Your overall recorded score is 80%.