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<P ALIGN=CENTER><B>Anonymous Grading</B></P>
<P>A peer graded assignment can be graded anonymously. In this
case the names (and any photos) of the students doing the grading
are not shown. Only the (file) names of the submissions are used to identify
the peices of work being graded.
<P>When the peer graded assignment is not graded anonymously, the
pieces of work are shown with the names (and any photos) of the
students who submitted the work. This may lead to bias in the gradings.
<P>Note that if the teacher's grades are shown to the students these are
never shown anonymously.
</P>
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<P ALIGN=CENTER><B>Peer Graded Assignment Type</B></P>
<P>A peer graded assignment can have one of two types:
<OL>
<LI>Only feedback on the assessment elements and the general comment
is entered. The grading of assessment elements is not seen in the
grading pages. Assignments themselves are not given an overall grade.
However, the grading performance of the students is measured and
this, and only this measure contributes towards the final grades given
to the students.
<LI>Here the teacher and peers are asked to provide both feedback and
grades. The assignments are given an overall quantative grade as well
as the qualative data. The final grade for a student will be calculated
from the (weighted) contributions of the teacher's grade, the mean
peers' grade and the student's grading performance.
</OL>
</P>
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<P ALIGN=CENTER><B>The Breakdown of the Final Grade</B></P>
<P>The table on this screen shows your final grade and how it was calculated.
The final grade is made up from three possible components.
<OL>
<LI>The teacher's grade for your submitted work.
<LI>The average of the peer grades for your submitted work.
<LI>A grade for your performance in the peer grading phase. This
performance was based by (a) whether your grades were too high or too low
when compared with the average grade of the other students (this is called bias),
(b) whether your grades follow, again on average, the grades given by
the other students (this is called reliability)
and (c) on the quality of your comments on the other pieces of work you graded.
This was graded by the teacher. These three performance grades were weighted
by the factors 1:2:3 respectively to give an overall &quot;grading&quot;
grade. In other words the teacher's grading of the comments is given the
same weight as the Bias and Reliability factors combined.
</OL>
<P>These three components can be weighted as deemed appropriate for the
assignment. These weights are shown in the smaller table.
</P>
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<P ALIGN=CENTER><B>The Calculation of the Final Grade</B></P>
<P>The table at the foot of the screen shows the final grade for each student
for this assignment. Their grade is made up from three components.
<OL>
<LI>The teacher's grade for their submitted work.
<LI>The average of the peer grades for their submitted work. This can optionally
include the teacher's grade. This grade would be included if the number of
peer gradings is very low or it is thought that the peer gradings are suspect
either because of bias (usually on the high side) or for not being reliable.
If included the teacher's grade is treated in the same way as a peer grade in
the calculation of the average.
<LI>A grade for the student's performance in the peer grading phase. This
performance is based by (a) if their grades are,on average, too high or too low
(this is called bias), (b) if their grades follow, again on average, the grades given by
the other students (and that of the teacher if included) (this is called reliability)
and (c) on the quality of their feedback to the other students, this is graded
explicitly by the teacher in the top half of the page. These three are weighted
by the factors 1:2:3 respectively in the calculation of the &quot;grading&quot;
grade. In other words the teacher's grading of the comments is given the
same weight as the Bias and Reliability factors combined.
</OL>
<P>These three components can be weighted as deemed appropriate for the
assignment. For example the teacher's grade might be weighted strongly
if the peer grading part of the assignment is only considered a minor part
of the assignment as a whole. Alternatively, if no teacher grading is done
at all then the teacher's grades should be given a zero weighting. If the
assignment is all about the students as judges and the providing of feedback
then first two components may be set to zero (or low) and the students'
grading abilities will dominate the final grades.
<P>Note that this screen is used iteratively and the final grades are not normally
made available to the students until all the grades for the comments have been
entered AND the component weights (for the teacher's grades, the peer
grades and grading performance) have been finalised. Once these two separate
tasks have been done then the final grades can be made available to the
students.
</P>
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<P ALIGN=CENTER><B>Peer Graded Assignment Elements</B></P>
<P>For ease of grading a Peer Graded Assignment should have a reasonable
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. A peer
assignment with only one element is allowed and has a similar assessment
strategy to the standard Moodle Assignment. 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 graded assignment.
</OL>
</P>
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<P ALIGN=CENTER><B>The Final Grades</B></P>
<P>The table on this screen lists the final grades and their breakdown as shown to
the students. If an error is seen in the table then it is possible to &quot;go back&quot;
and make a correction in some cases. There are a couple of possibilities.
<OL>
<LI>If a teacher's grade needs to be changed then the piece of work can be
re-graded by going
to the teacher's Management screen for assignment and clicking on the link &quot;View
(n) submitted Assignments&quot;. The piece of work can be re-graded. Once this has
been done then the Phase 4 screen &quot;Grade Comments&quot; should be displayed AND the
link at the foot of that page clicked so that the new final grade is stored in the
database.
<LI>If it is desired to use a different weighting scheme then the link
&quot;Calculate Final Grades&quot; can be clicked and the new weights entered. Clicking
on the button at the foot of the screen will save the adjusted weights and re-calculate
the final scores.
</OL>
</P>
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<P ALIGN=CENTER><B>A Graded Peer Assignment</B></P>
<P>This shows the grades and comments made on the submitted piece of
work. You can if you wish reply to this assessment and choose not to
accept it (at this stage). If that is the case, please enter your reply in the
box at the foot of the page giving the reason why you are not happy with
the assessment. Then click on the button at the foot of the page and
choose NO when asked whether you are happy with this assessment.
<P>If, on the other hand. you are happy with the assessment simply
click on the button at the foot of the page and then click on YES when
asked whether you are happy with this assessment.
</P>
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<P ALIGN=CENTER><B>Grading of Peer Assignments</B></P>
<P>For ease of grading a Peer Assignment is divided into a number of
assessment &quot;elements&quot;. Each element covers
a particular aspect of the assignment. For each element you should
<OL>
<LI>Enter a Grade by clicking in the appropriate button or selecting an appropriate
number from the drop down menu.
<LI>Enter an explaination of why you gave that grade in the Feedback box. If
you feel that the reason is obvious then leave the box empty. Note, however,
that the person whose work you are asessing has the opportunity to get back
to you and may well query a grade if there is no explaination.
</OL>
<P>The last box on this form allows you to make a general comment on the
work. This should justify your assessment. It should be polite and as far as
possible constructive.
<P>Note that not all the assessment elements may be counted equally. The
higher their &QUOT;Weight&quot; the higher they count when calculating
the overall grade.
<P>You may find that once you have assessed several pieces of work, you want
to re-assess one or two of them. This is allowed and, indeed, this is good idea as
it will give your asessments a greater consistency.
</P>
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<P ALIGN=CENTER><B>Grading the Peer Comments</B></P>
<P>This screen is used to enter the teacher's grades for the comments made
by the students during the peer grading phase of the assignment. A relatively
simple grading is used, the score out of 20. The treacher can decide what is
being graded and the relative scores from the instructions given to the students
before the peer grading started. For example, at a higher level the students may be
required to give critical comments, at an intermediate level the students may be
required to point out strengths and weaknesses, and at a lower level the students
may be simply pointing out errors and inaccuracies.
<P>The comments are grouped together by submission, that is each set of
comments refers to the same piece of work. If available the teacher's own
comments are shown first as a kind of benchmark.
<P>Note that this screen can be used iteratively and there is no need to grade all
the comments in one go. Indeed it may be desirable to regrade some of the
comments once the &quot;standard&quot; of the comments has been established.
<P>The grades of comments that have been scored are
saved by clicking on the apprpriate button at the foot of the page. Once the
teacher is happy with all the comment grades the next step is to calculate
the Final Grades.
</P>
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<P ALIGN=CENTER><B>Including Self in the Assignment</B></P>
<P>A peer graded assignment can optionally include the student's own work
in the set of pieces each student is asked to grade. This will mean that if, say, the
number of peer assessors is 5, then each student will be asked to grade 6
pieces of work, one of them being their own work.
<P>If the number of peer assessors is set to zero and the include self option
is turned on then the assignment becomes a self-graded assignment. This
may or may not include the teacher's grading depending on whether that
option is set or not.
</P>
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<P ALIGN=CENTER><B>Managing a Peer Graded Assignment</B></P>
<P>A Peer Graded Assignment is more complex than an ordinary assignment.
It involves a number of steps or phases. These are
<OL>
<LI>The assessment of a peer assignment should be broken into a number
of assessment ELEMENTS. This makes the grading of an assignment less
arbitary and gives the students a framework on which to make assessments.
The teacher has the role of setting up the assessment elements thus making a
grading page. (See that page for more details.)
<LI>With the grading page set up the assignment is made available to students.
There is a submission deadline for the work done by the students. During this
phase the teacher can, if desired, grade some or all of the submissions. The
grading need not be final, the grades are used as a guide in the next phase...
<LI>After the submission deadline has passed, the teacher moves the assignment
to the peer grading phase. First each student is allocated a random selection
of the submitted pieces of work. If there is a sufficient number of <b>graded</b>
submissions, the system ensures that each student is allocated at least one
&quot;good&quot; piece of work and at least one &quot;poor&quot; piece of work.
Each student now has a number of pieces of work to grade. This must be done
within the &quot;Grading&quot; deadline. A student can comment on these
assessments (made by other students) of their own peice of work and they
can go back for re-grading if the student is not happy with some aspect.
That loop continues until either the student is happy with the amended
assessment, the deadline for grading is reached or the teacher intervenes
in the process.
<LI>After the grading deadline has passed the teacher must grade the comments
made by the students on submissions. This is a single grade score. Once the
comments has be graded the teacher can calculate the final grades of the students.
These final grades are normally made up of three components, teacher's grade,
mean peer grade and grading performance. The later is mainly the mean score
entered by the teacher against a student's comments. This three components are
first weighted before the calculation takes place.
</OL>
</P>
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<P ALIGN=CENTER><B>Number of Peer Assessors</B></P>
<P>A peer graded assignment will normally have around 3 to 8 peer
assessors. That is, in the peer grading phase, each student will be
asked to grade this number of pieces of work from the other students
in the class. The larger the assignment is, in terms of content, the
smaller this number should be, else the grading burden on the
students becomes onerous. However, each student should see sufficient
examples to gain an insight into what constitutes a good piece of work
and a poor piece of work. Further for the grading performance of a
student to be assessed meaningfully the greater the number of peer
gradings the better. This performance is unlikely to be valid if only three
or four gradings are done by each student.
<P>Provided there is enough pieces of work submitted (actually 10 or
more), the system will allocate each student at least one &quot;good&quot; and
at least one &quot;poor&quot; piece of work. However, this can only be done if the
teacher has graded the pieces of work BEORE the allocation of (peer) grading
work is done. The teacher does NOT, however, have to grade all the
pieces of work, a sample is sufficient. Further, the teacher's gradings need
NOT be the final gradings, a preliminary grading is good enough. Note,
however, that if the option to show teacher's gradings is turned on,
these gradings will be shown to the students at the end of the submission
phase.
<P>The number of peer assesors can be zero. In which case the assignment
becomes either a self-graded assignment if that option is turned on, or
a normal teacher-graded assignment.
</P>
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<P ALIGN=CENTER><B>Resubmitting assignments</B></P>
<P>By default, students cannot resubmit assignments once the teacher has graded them</P>
<P>If you turn this option on, then students will be allowed to resubmit assignments
after they have been graded (for you to re-grade). This may be useful if the
teacher wants to encourage students to do better work in an iterative process.</P>
<P>Obviously, this option is only relevant during the submission phase of a peer graded
assignment. During the peer grading phase the grading is always done iteratively, the student
whose work is being graded has the opportunity to disagree with the set of
comments (and possibly grades) on their work and send a reply back to the student
doing the grading. This process continues until agreement is reached...
</P>
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<P ALIGN=CENTER><B>When to display Grades</B></P>
<P>A peer graded assignment can have either of these characteristics:
<OL>
<LI>In the peer grading phase the students see the feedback on the
assessment elements, the general comment and the grades given
by the other students. The students are shown both the individual
assessment element grades and their overall grade. This may lead
into more disputes than the second type of peer graded assignment...
<LI>In the peer grading phase the students see only the feadback on the
assessment elements and the general comment made by
the other students. The grades for the individual assessment elements are
not revealed (although they are held in the system). Further, the students
do not see their overall grades as given by their peers. Only when the
comments have been agreed are the grades (and the overall grade)
shown. This type of peer graded assignment is likely to be less
contentious than the first type.
</OL>
</P>
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<P ALIGN=CENTER><B>Specimen Grading Form</B></P>
<P>This page shows shows the details of the actual form used to grade
your assignment. It will be used by the teacher to grade your work. Further,
in a peer graded asignment, the same form will be used by yourself and
your fellow students to grade the submitted pieces of work.
<P>Please note that although you can change the grades and add text on
this form these changes are NOT saved. This is simply a specimen form,
but a very similar form will be used by the teacher and by you during this
assignment.
</P>
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<P ALIGN=CENTER><B>Display of Teacher's Grades</B></P>
<P>A peer graded assignment can optionally make the teacher's comments
and grades available to the student's. If desired, these are shown after the
submission deadline, or later if the grades are not available then. The teacher's
comments and grades may well help the students when making their own
(peer) assessments on other student's work.
<P>Note that even when the peer grading is done anonymously, the
teacher's grades are always shown to the students with the teacher's
name and, if available, their photo.
</P>