# Rubriken: Unterschied zwischen den Versionen

*Hinweis: Sie sind auf den Seiten der Moodle 3.3 Dokumentation. Die Dokumentation der aktuellsten Moodle-Version finden Sie hier: Rubriken.*

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+ | [[image:gradingform-rubric-icon.png]] '''Rubrics''' are [[Advanced grading methods|advanced grading forms]] used for criteria-based assessment. The rubric consists of a set of criteria. For each criterion, several descriptive levels are provided. A numerical grade is assigned to each of these levels. The rater chooses which level answers/describes the given criterion best. The raw rubric score is calculated as a sum of all criteria grades. The final grade is calculated by comparing the actual score with the worst/best possible score that could be received. | ||

+ | |||

+ | == Rubric editor == | ||

+ | |||

+ | [[image:gradingfrom-rubric-editor.png|thumb|right|Rubric editor]] | ||

+ | |||

+ | The rubric editor is available via the advanced grading method management screen which in turn is available via the 'Advanced grading' link in the activity settings block. The editor lets you set the rubric form name, the description and the rubric itself. The editor lets you add new criteria and levels, delete them and change the criteria order. There are several rubric options that can be configured, too. For each criterion, the criterion description should be filled. For each level, the level definition and the number of points associated with the level should be specified. Neither the criterion description nor the level definition text fields support embedded images yet. | ||

+ | |||

+ | The rubric definition must be saved using either 'Save rubric and make it ready' or 'Save as draft' button. The button sets the form definition status respectively as described at the [[Advanced grading methods]] page. | ||

+ | |||

+ | ''Hint:'' You can modify the effective weight of a criterion by setting the value of the points assigned to its levels. If there is one criterion with levels 0, 1, 2, 3 and the second one with levels 0, 2, 4, 6 then the later one's impact on the final grade is twice as much as the first one's. | ||

+ | |||

+ | ''Hint:'' Use the Tab key to jump to the next level/criteria and even to add new criteria. | ||

+ | |||

+ | == Using the rubric == | ||

+ | |||

+ | [[image:gradingfrom-rubric-usage.png|thumb|right|Filling the rubric to assess a submission in the Assignment module]] | ||

+ | |||

+ | When teachers use the rubric to assess some student's work, they select the level describing the student's performance best for each criterion. Currently selected levels are highlighted in light green. If the rubric filling is re-edited later, the previously selected level is highlighted in light red. A level must be selected for each criterion, otherwise the rubric is not validated by the server as the final grade can't be calculated. | ||

+ | |||

+ | If the form definition allows it, an optional remark can be filled for each criterion providing a detailed feedback/explanation of the assessment. | ||

+ | |||

+ | == Grade calculation == | ||

+ | |||

+ | The rubric normalized score (ie basically a percentage grade) is calculated as | ||

+ | |||

+ | : <math>G_s = \frac{\sum_{i=1}^N (g_i - min_i) }{\sum_{i=1}^N (max_i - min_i)}</math> | ||

+ | : where <math>g_i \in \mathbb{N}</math> is the number of points given to the i-th criterion, <math>min_i \in \mathbb{N}</math> is the minimal possible number of points for of the i-th criterion, <math>max_i \in \mathbb{N}</math> is the maximal possible number of points for the i-th criterion and <math>N \in \mathbb{N} </math> is the number of criteria in the rubric. | ||

+ | |||

+ | Example of a single criterion can be: ''Overall quality of the paper'' with the levels ''5 - An excellent paper'', ''3 - A mediocre paper'', ''0 - A weak paper'' (the number represent the number of points). | ||

+ | |||

+ | ''Example:'' let us have an assessment form with two criteria, which both have four levels 1, 2, 3, 4. The teacher chooses level with 2 points for the first criterion and 3 points for the second criterion. Then the normalized score is: | ||

+ | |||

+ | : <math>G_s = \frac{(2 - 1) + (3 - 1)}{(4 - 1) + (4 - 1)} = \frac{3}{6} = 50 %</math> | ||

+ | |||

+ | Note that this calculation may be different from how you intuitively use rubric. For example, when the teacher in the previous example chose both levels with 1 point, the plain sum would be 2 points. But that is actually the lowest possible score so it maps to the grade 0 in Moodle. To avoid confusion, it is recommended to always include a level with 0 points in the rubric definition. | ||

+ | |||

+ | == See also == | ||

+ | *[http://youtu.be/KXavtUhDINA A first look at rubrics] Screencast | ||

+ | * [[Advanced grading methods]] page for general concepts of advanced grading in Moodle | ||

+ | * [http://en.wikipedia.org/wiki/Rubric_(academic) Rubric description] at Wikipedia | ||

+ | * [http://school.discoveryeducation.com/schrockguide/assess.html Examples of Assessment Rubrics] at Kathy Schrock's Guide for Educators | ||

+ | * Using Moodle [http://moodle.org/mod/forum/discuss.php?d=202806 Teachers can't create Rubric Templates] forum discussion | ||

+ | * http://rubistar.4teachers.org/ - a free tool to help teachers create quality rubrics | ||

[[en:Rubrics]] | [[en:Rubrics]] |

## Version vom 14. Juni 2012, 11:49 Uhr

**Rubriken**

Diese Seite ist noch nicht vollständig übersetzt.

Neue Funktionalität

in **Moodle 3.3**!Datei:gradingform-rubric-icon.png **Rubrics** are advanced grading forms used for criteria-based assessment. The rubric consists of a set of criteria. For each criterion, several descriptive levels are provided. A numerical grade is assigned to each of these levels. The rater chooses which level answers/describes the given criterion best. The raw rubric score is calculated as a sum of all criteria grades. The final grade is calculated by comparing the actual score with the worst/best possible score that could be received.

## Inhaltsverzeichnis

## Rubric editor

The rubric editor is available via the advanced grading method management screen which in turn is available via the 'Advanced grading' link in the activity settings block. The editor lets you set the rubric form name, the description and the rubric itself. The editor lets you add new criteria and levels, delete them and change the criteria order. There are several rubric options that can be configured, too. For each criterion, the criterion description should be filled. For each level, the level definition and the number of points associated with the level should be specified. Neither the criterion description nor the level definition text fields support embedded images yet.

The rubric definition must be saved using either 'Save rubric and make it ready' or 'Save as draft' button. The button sets the form definition status respectively as described at the Advanced grading methods page.

*Hint:* You can modify the effective weight of a criterion by setting the value of the points assigned to its levels. If there is one criterion with levels 0, 1, 2, 3 and the second one with levels 0, 2, 4, 6 then the later one's impact on the final grade is twice as much as the first one's.

*Hint:* Use the Tab key to jump to the next level/criteria and even to add new criteria.

## Using the rubric

When teachers use the rubric to assess some student's work, they select the level describing the student's performance best for each criterion. Currently selected levels are highlighted in light green. If the rubric filling is re-edited later, the previously selected level is highlighted in light red. A level must be selected for each criterion, otherwise the rubric is not validated by the server as the final grade can't be calculated.

If the form definition allows it, an optional remark can be filled for each criterion providing a detailed feedback/explanation of the assessment.

## Grade calculation

The rubric normalized score (ie basically a percentage grade) is calculated as

- where is the number of points given to the i-th criterion, is the minimal possible number of points for of the i-th criterion, is the maximal possible number of points for the i-th criterion and is the number of criteria in the rubric.

Example of a single criterion can be: *Overall quality of the paper* with the levels *5 - An excellent paper*, *3 - A mediocre paper*, *0 - A weak paper* (the number represent the number of points).

*Example:* let us have an assessment form with two criteria, which both have four levels 1, 2, 3, 4. The teacher chooses level with 2 points for the first criterion and 3 points for the second criterion. Then the normalized score is:

Note that this calculation may be different from how you intuitively use rubric. For example, when the teacher in the previous example chose both levels with 1 point, the plain sum would be 2 points. But that is actually the lowest possible score so it maps to the grade 0 in Moodle. To avoid confusion, it is recommended to always include a level with 0 points in the rubric definition.

## See also

- A first look at rubrics Screencast
- Advanced grading methods page for general concepts of advanced grading in Moodle
- Rubric description at Wikipedia
- Examples of Assessment Rubrics at Kathy Schrock's Guide for Educators
- Using Moodle Teachers can't create Rubric Templates forum discussion
- http://rubistar.4teachers.org/ - a free tool to help teachers create quality rubrics