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Moodle Guide

The development of this guide is ongoing; we will continue adding Moodle LMS Tips, Guides, and Instructions. On the left-hand sidebar, you will find a list of Moodle LMS features or options. To learn more about that option or feature, click on the link.

Changing Aggregation Method

Moodle converts all grades to a percentage value and then aggregates the grade according to the strategy that you select. There are over 8 different aggregation methods.

Aggregation Methods

Method Definition
Mean of Grades The sum of all grades is calculated and then the total is divided by the number of graded items.
Weighted Mean of Grades The sum of all grades is calculated, the specified weight is applied to the grade, and then the total is divided by the sum of all weights.
Simple Weighted Mean of Grades The sum of all grades is calculated ,the Maximum Grade Value for the assignment is applied as the weight, and then the total is divided by the sum of all weights.
Median of Grades

Grades are arranged in ascending order, and then the median value is chosen. If there are even grades, the two middle values will be chosen and then divided by 2.
Natural This will  be the sum of all grade values, scaled by their relative weight. The maximum grade of the category is the sum of all the maximum grades of the aggregated items.

How do I change Aggregation Methods?

Changing the Method of Aggregation

Note. You can choose an aggregation method for each Grade Category.

Step 1

Click Edit > Edit Settings on a Course Category.

Click Edit > Edit Settings on any Grade Category.

Step 2

In Edit Settings under the Aggregation drop-down, choose the appropriate weight.

Please choose the aggregation method in the aggregation drop-down menu.

Note. If you select Weighted Mean of Grades you will be able to input the weight of each item within the category on the Gradebook Setup page.

Overview of Different Aggregation Methods


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