How to Measure the Effectiveness of Your Sunday School

How do you measure the effectiveness of your Sunday School? Here are a few numbers and ratios, some old and some new, you might find helpful. There are certainly others, but here are some key metrics that may help you evaluate your Sunday School at any level: the entire organization, a division, a department, or a class.
The Classics: Enrollment and Attendance
These are the two tried and true metrics, and the ones SBC churches report on the Annual Church Profile. If you were only going to measure one thing, it should be enrollment, because enrollment is the driver of Sunday School growth. Attendance is also a useful metric, especially when expressed as a monthly, quarterly, or yearly average. There are too many factors involved in attendance to fret too much over comparing attendance for one day versus the same Sunday a year ago! Comparing a monthly average versus the same month last year would be more meaningful.
Attendance/Enrollment
This ratio can also be a useful metric. Nationally, the SBC ratio is about 50 percent. If the ratio is less than 40 percent, that may be a signal that more teaching units are needed. If above 60 percent, it may indicate that you need to become more aggressive about enrolling new people or that you have been too aggressive at purging inactive members from the ministry list (class roll). One of those strange and inexplicable laws of Sunday School is this: If enrollment goes up, so does attendance. If enrollment goes down, attendance falls, too - even if the people you’ve taken off the roll never come! Don’t know why! Just does!
Active Enrollment
Sometimes we can make the mistake of thinking that the gap between attendance and enrollment represents members who never or seldom come. You might be encouraged to discover that’s not true! How? By tracking active enrollment: the number of members who attend at least one time per month. Do you count visitors? Only if they enroll! I also add an additional number to this total to measure the effectiveness of an adult department or class: the number of associate members serving in preschool, children, or student classes. I published a monthly report for all leaders to see based on this total, which I believe is the primary metric to measure the health of an adult class.
Attendance/Units
The first step in calculating this ratio is to accurately determine the number of teaching units you have. For adults, students, and children, that’s usually pretty easy, since they typically meet only one session. Each class is a unit. For preschoolers, typically you will count each room as a unit, even if it is used/staffed multiple times. (Even with three sessions, most of the preschoolers are in the room the second session.) If you use a master-teacher approach with small groups, you might count each group as a unit if they sit together each week with the same group leader. Once you’ve got the number of units, you can arrive at your average attendance per unit. You may want to calculate this by age-group or division. This number will tell you at least one important thing: how much you can expect your attendance to increase with each additional unit you add. As a rule of thumb, that number is usually about ten.
Maximum Effective Attendance
This is a metric you can use to discover when a class has hit the ceiling of its growth. It will be the attendance number the class celebrates, only to go back down the next week. If you chart it over time, you’ll discover a pattern. When the class reaches a certain number, the attendance falls after that. That’s not something to be depressed over. It’s just a signal that another class may be needed if growth is to continue beyond that level.
Annual Churn
Every church, every Sunday School, and every class experiences churn. What is that? Churn is the number of people each year who will die, move, or just get mad and leave! It is the number of new people you have to enroll each year just to stay even. You can calculate that number over a period of years. In the typical church or class, it is around twenty percent. In order to grow, you’ll need to first achieve that number, then enroll some more people on top of that - who will attend about 50 percent of the time! So if you’re averaging 100 in attendance, and want to grow to 120 next year, you’ll need to enroll 60 new people: 20 to cover the churn, plus an additional 40 who come half the time, for a net increase of 20. That’s a little over one new person per week. Now that we know the challenge, let’s get busy!
David Francis is director of Sunday School at LifeWay Christian Resources, Nashville, Tennessee.

