In Course Navigation, click the Outcomes link.

Click the Calculation tab.

To select a mastery calculation method, click the Mastery Calculation  drop-down menu [1]. You can select one of four calculation methods:  Weighted Average [2], Decaying Average [3], n Number of Times [4], Most  Recent Score [5], Highest Score [6], and Average [7].

If you are unable to edit the mastery calculation, you do not have  permission to edit the mastery calculation in your course. For  assistance managing your mastery calculation, contact your Canvas  administrator.

To average assessment item scores with a greater weight for the most recent assessment item, select the Weighted Average option [1].

The Weighted Average calculation splits the total percentage between  the most recent assessment item and an average of all prior assessment  items. For example, you can set the most recent submission to be  weighted at 40% of the total and prior items to be weighted at 60% of  the total.

Enter the percentage to use for the most recent result in the Parameter field [2]. You can also increase or decrease the parameter by using the Arrow  icons [3]. The Parameter field accepts whole numbers between 1 and 99.  By default, the parameter is set to 65%. The remaining amount is used to  weigh prior scores.

In the Example section [4], the calculation updates  based on your select parameter. The average is rounded to the next two  decimals. If there is only one result, the single score will be  displayed.

To average assessment item scores with a greater weight for the most recent assessment item, select the Decaying Average option [1].

The Decaying Average calculation uses a formula to determine  proficiency based on students' average scores, giving more weight to the  most recent scored. To determine the weight given to the most recent  score, the formula uses a decay rate. The higher the formula's decay  rate, the more heavily the most recent assessment is weighted. 

By default, the decay weight is set to 65% in the Parameter field [2]. However, you can adjust the rate to any percentage between 50% and 99% using the Arrow icons  [3]. Between two assessments, the most recent assessment gets 65%  weight and the first gets 35%. For each additional assessment, the sum  of the previous score calculations decay by an additional 35%.

For example, a student has scores of 1, 2, 3, 4 (scores listed chronologically from oldest to most recent):

(1 × .35) + (2 × .65) = X

(X × .35) + (3 × .65) = Y

(Y × .35) + (4 × .65) = Z  (this being the current standard score; 3.48)

To set a number of times that a student must meet or exceed mastery on a set amount of aligned items, select the n Number of Times option [1].

Enter the number of times mastery must be achieved in the Parameter field [2]. You can also increase or decrease the parameter by using the Arrow icons [3]. The Parameter field accepts numbers between 1 and 5.

Any scores that do not meet mastery are not used in the calculation.

To select the score for the recently graded item, select the Most Recent Score option [1].

You can view an example of the Most Recent Score calculation in the Example section [2].

To select the highest score from all assessment items, select the Highest Score option [1].

You can view an example of the Highest Score calculation in the Example section [2].

To select the average score from all assessment items, select the Average option [1].

You can view an example of the Average calculation in the Example section [2].

To save your calculation method, click the Save Mastery Calculation button.