From b25b9f2dceb647fcca7273b6c9013b98cdf84fe4 Mon Sep 17 00:00:00 2001 From: rkingdon Date: Wed, 8 Sep 2004 11:27:59 +0000 Subject: [PATCH] New help files for version 2004081100. --- .../workshop/comparisonofassessments.html | 69 +++++++++++++++++++ lang/en/help/workshop/grade.html | 12 ++++ lang/en/help/workshop/gradinggrade.html | 26 +++++++ lang/en/help/workshop/teacherweight.html | 25 +++++++ .../en/help/workshop/ungradedassessments.html | 24 +++++++ 5 files changed, 156 insertions(+) create mode 100644 lang/en/help/workshop/comparisonofassessments.html create mode 100644 lang/en/help/workshop/grade.html create mode 100644 lang/en/help/workshop/gradinggrade.html create mode 100644 lang/en/help/workshop/teacherweight.html create mode 100644 lang/en/help/workshop/ungradedassessments.html diff --git a/lang/en/help/workshop/comparisonofassessments.html b/lang/en/help/workshop/comparisonofassessments.html new file mode 100644 index 0000000000..d02ed7aa87 --- /dev/null +++ b/lang/en/help/workshop/comparisonofassessments.html @@ -0,0 +1,69 @@ +

Comparison of Assessments

+ +

In a workshop it is common for the same piece of work to be assessed by the + teacher and the students. If examples are used then the teacher first + assesses them before the students assess a selection of them. The work from + the students may well be assessed by the teacher, at least in part, and + very possibly by a number of students. A workshop allows the teacher to award + a proportion of the grade to the student's assessments, the remainder of + the grade is allocated to the assessments of the work itself. (The + proportions of the grade given to these two areas is set towards the end of + the workshop.) A student's assessments are given a grade based on how well + they match the corresponding assessments make by the teacher. (In the + absence of a teacher assessment then the average of the peer assessments is + used).

+ +

The degree of agreement between the student's and teacher's assessment is + based on the differences between the scores in individual elements + (actually the squared differences are used). The mean of these differences + must to converted into a meaningful grade. The "Comparison of + Assessments" option allows the teacher a degree of control on how + these comparisons are converted into grades.

+ +

To get some idea on what effect this option has, take the (fairly simple) + case of an assessment which has ten Yes/No questions. For example the + assessment might use questions like "Is the chart correctly formatted?", + "Is the calculated profit $100.66?", etc. Assume there are ten such + questions. When the "Very Lax" setting is chosen, prefect + agreement between the student's and teacher's assessment gives a grade of + 100%, if there is only one question which does not match the grade is 90%, + two disagreements give a grade of 80%, three + disagreements 70%, etc.. That might seem very reasonable and you might be thinking + why is this option called a "Very Lax" comparison. Well, consider + the case of a student doing a completely random assessment where the + answers of the ten questions are simply + guessed. On average this would result in five of the ten questions being + matched. So the "monkey's" assessment would get a grade of around + 50%. The situation gets a little more sensible with the "Lax" + option, then + the random assessment gets around 20%. When the "Fair" option is + chosen, random guessing will result in a zero grade most of the + time. At this level, a grade of 50% is given when the two assessments agree + on eight questions of the ten. If three questions are in disagreement then + the grade given is 25%. When the option is set to "Strict" having + two questions out of sync gives a grade of 40%. Moving into the "Very + Strict" territory a disagreement in just two questions drops the grade to + 35% and having a single question in disagreement gives a grade of 65%.

+ +

This example is sightly artifical as most assessments usually have elements + which have a range of values rather than just Yes or No. In those cases the + comparison is likely to result in somewhat higher grades then the values + indicated above. The various levels (Very Lax, Lax, Fair...) are given so + that the teacher can fine tune the comparisons. If they feel that the grades + being given for assessments are too low then this option should be moved + towards the "Lax" or even "Very Lax" choices. And + alternatively, if the grades for the student's assessments are, in general, + felt to be too high this option should be moved to either the + "Strict" or "Very Strict" choices. It is really a + matter of trial and error with the best starting point being the + "Fair" option.

+ +

During the course of the workshop the teacher may feel that the grades given + to the student assessments are either too high or too low. These grades are + shown on the exercise's Administration Page. In this case, the teacher can + change the setting of this option and re-calculate the student assessment + grades (the "Grading Grades"). The re-calculation is done by + clicking the "Re-grade Student Assessments" link found on the + administration page of the workshop. This can be safely performed at any + time in the workshop.

+ diff --git a/lang/en/help/workshop/grade.html b/lang/en/help/workshop/grade.html new file mode 100644 index 0000000000..a4c5b754e3 --- /dev/null +++ b/lang/en/help/workshop/grade.html @@ -0,0 +1,12 @@ +

The Grade of the Submissions

+ +

This value determines the maximum grade which can be awarded to a submission.

+ +

The overall grade for the workshop is the sum of the (average) grade of the student's + assessments and the grade from their submission(s). Thus if the (maximum) + grade for the student's assessments is set to 30 and the (maximum) grade for + the submissions is 70 the (maximum) grade for the workshop is 100.

+ +

This value can be changed at any time and the effect on the grades seen by + the students (and the teacher) is immediate.

+ diff --git a/lang/en/help/workshop/gradinggrade.html b/lang/en/help/workshop/gradinggrade.html new file mode 100644 index 0000000000..4bff880bb0 --- /dev/null +++ b/lang/en/help/workshop/gradinggrade.html @@ -0,0 +1,26 @@ +

Grade of Student Assessments

+ +

This is the maximum grade given to the assessments make by students of their + own and/or other work. That is, the grade for their assessments. The actual + grades for an assessment is calculated by the workshop module by comparing + that assessment with the "best" assessment of the same submission. The + "best" assessment is the one which is closest to the mean of all + the assessments. (This is a "weighted" mean if the teacher's + assessment are given a weight greater than one.) Note that if there is only + one assessment of an submission, that single assessemnt is taken as the + best. If there are are two assessments of an submission, both are + considered "best". Only when there are three or more assessments + does the module start to make distinctions between the assessments.

+ +

This grade is sometimes called the "grading grade" and is + not the maximum grade given to the work, that grade is called + "Grade for Submissions".

+ +

A student's grade for the workshop is the sum of this grade and the grade + for their submission(s). Thus if the (maximum) grade for the Student + assessments is set at 20 and the (maximum) grade for submission is set to + 80, then the (maximum) grade for the workshop is 100.

+ +

This value can be changed at any time and the effect on the grades seen by + the students (and the teacher) is immediate.

+ diff --git a/lang/en/help/workshop/teacherweight.html b/lang/en/help/workshop/teacherweight.html new file mode 100644 index 0000000000..dd5220d840 --- /dev/null +++ b/lang/en/help/workshop/teacherweight.html @@ -0,0 +1,25 @@ +

Weight of Teacher's Assessments

+ +

This option, usually set at 1, can be used to either "switch off" + any assessments made by the teacher, to give them an equal weight as the + student assessments, or give them more weight than the student assessemnts.

+ +

The normal value for this option is 1. This gives the teacher's assessments + the same weight as student assessments.

+ +

There may arise circumstances when it is felt that the students are consistently + "over grading" assessments, that is giving their peers too high a + grade. The oposite may happen when the peer grading is too low (but that is + more unusual). The poor grading by the students can be compensated, to a + degree, by increasing the value of this option. Setting the value to 5, for + example, means that if there are 5 student assessments of each submission, + say, then the teacher's assessment has the same weight (in dropping suspect + assessments and in determining the grade) + as all 5 of the student assessments. Further in the analysis of assessments, + student assessments which do not agree with that of the teacher are more + likely to be dropped when this option is greater than one. The remaining + assessments are closer to the teacher's grade thus giving even more weight + to the teacher's assessment.

+ +

This option can be changed at any time during the assignment.

+ diff --git a/lang/en/help/workshop/ungradedassessments.html b/lang/en/help/workshop/ungradedassessments.html new file mode 100644 index 0000000000..713a00051e --- /dev/null +++ b/lang/en/help/workshop/ungradedassessments.html @@ -0,0 +1,24 @@ +

UnGraded Assessments

+ +

In general, the assessments made by students are given a (small) proportion + of marks which count towards their final grade. The grading of these + assessments (and those made by the teacher) is done in the background by + the workshop module. Provided a submission is assessed + three or more times, the module can make a reasonable estimate of each + assessment's "worth". (For submissions which have been assessed + only once or twice, these assessments are given the maximum "grading + grade".) As this grading process is done at regular intervals, the + number of ungraded assessments will normally be zero.

+ +

The function of this link is to force a re-calculation of the grading grades, + the grades given to assessments. The teacher may want to do this when either + of these two options is changed: +

    +
  1. The option "Comparison of Assessments";
    2. +
  2. The weighting given to the teacher's assessments.
    3. +
+ Clicking on this link will immediately bring the grading grades up-to-date, + reflecting the current values given to these parameters. Changes to other + the settings of the workshop, such as the value for the grading grade + itself, do not require this re-calculation to be performed.

+ -- 2.39.5