moodle/lang/en/help/exercise/gradingstrategy.html

<P ALIGN=CENTER><B>Grading Strategy</B></P>

<P>A workshop assignment is quite flexible in the type of grading scheme used. This can be:

<OL>
<LI><B>No grading:</B> In this type of assignment the teacher is not 
	interested in quantative assessment from the students at all. The students
	make comments of the pieces of works but do not grade them. The teacher,
	however, can, if desired, grade the student comments. These 
	&quot;grading grades&quot; form the basis of the students' final grades.
	If the teacher does not grade the student assessments then the assignment 
	does not have any final grades.
	
<LI><B>Accumulative grading:</B> This is the default type of grading.
	In this type of assignment the grade of each
	assessment is made up of a number of &quot;assessment elements&quot;.
	 Each element should cover
	a particular aspect of the assignment. Typically an assignment will have
	something between 5 to 15 elements for comments and grading, the 
	actual number depending on the size and complexity of the assignment. An 
	exercise assignment with only one element is allowed and has a similar assessment
	strategy to the standard Moodle Assignment. 
	
<P>Elements have the following three features:
<OL>
<LI>The DESCRIPTION of the assessment element. This should clearly state what 
	aspect of the assignment is being assessed. If the assessment is qualatative
	it is helpful to give details of what is considered excellent, average 
	and poor.
	
<LI>The SCALE of the assessment element. There are a number of prefined
	scales. These range from simple Yes/No scales, through multipoint scales to
	a full percentage scale. Each element has its own scale which should be choosen
	to fit the number of possible variations for that element. Note that the scale 
	does NOT determine the element's	importance when calculating the overall 
	grade, a two point scale has the same &quot;influence&quot; as a 100 point 
	scale if the respective elements have the same weight...

<LI>The WEIGHT of the assessment element. By default the elements are given the same 
	importance when calculating the overall grade of the assignment. This can be
	changed by giving the more importance elements a weight greater than one, and
	the less important elements a weight below one. Changing the weights does NOT 
	effect the maximum grade, that value is fixed by the Maximum Grade parameter
	of the peer assignment. Weights can be assigned negative values, this is an 
	experimental feature.
</OL>

<LI><B>Error Banded Grading:</B> In this type of assignment the submissions are 
	graded on a set of Yes/No scales. The grade is determined by the &quot;Grade
	Table &quot; which gives the relationship between the number of  
	&quot;errors&quot; and the suggested grade. For example an assignment may have six
	significant items which should be present, the Grade Table will give suggested
	grades if all are present, one is absent, if two are absent, etc. The individual
	items can, if desired, be given weighting factors if some items are more important
	than others. The number of &quot;errors&quot; is a weighted sum of the items not
	present. By default each item is given a weight of one. The grading table is likely 
	to be non-linear, for example
	the sugested grades may be 90%, 70%, 50%, 40%, 30%, 20%, 10%, 0%, 0%, 0%  for 
	an assignment with 10 items.The assessor can adjust the suggested grade by up 
	to 20%  either way to give the submission's final grade.
	
<LI><B>Criterion Grading:</B> This is simpliest type of assessment to grade (although 
	not necessarily the most straightforward to set up). The submissions are 
	graded against a set of criteria statments. The assessor choses which statement 
	best fits the piece of work. The grade is determined by a &quot;Criteria 
	Table&quot; which gives the suggested grade for each criterion. For example
	an assignment may be set up with, say, five criteria statements and the assessors
	must then choose one of the five statements for each of their assessments. As with
	the Banded assignment the assessor can adjust the suggested grade by up to 
	20% to give the final grade.

<li><b>Rubric</b> This is a similar to Criterion Grading except there are multiple
	sets of criteria. Each set covering a particular &quot;Category&quot;, can have 
	up to five statements. The sets are given individual 
	weights and the grade is a weighted combination of the scores from each set. There 
	is <b>no</b> adjustment option in this assessment type. 
</OL>
</P>