Enter the sum of all expected referrals and the number of observed referrals into the Standardized Referral Ratio Calculator. The calculator will evaluate the Standardized Referral Ratio.

## Standardized Referral Ratio Formula

The following two example problems outline the steps and information needed to calculate the Standardized Referral Ratio.

SRR = EF / OR

Variables:

• SRR is the Standardized Referral Ratio ( )
• EF is the sum of all expected referrals
• OR is the number of observed referrals

## How to Calculate Standardized Referral Ratio?

The following steps outline how to calculate the Standardized Referral Ratio.

1. First, determine the sum of all expected referrals.
2. Next, determine the number of observed referrals.
3. Next, gather the formula from above = SRR = EF / OR.
4. Finally, calculate the Standardized Referral Ratio.
5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem :

Use the following variables as an example problem to test your knowledge.

sum of all expected referrals = 400

number of observed referrals = 500

SRR = EF / OR = ?