Stated simply, the number one reason for the decline in church attendance is that members attend with less frequency than they did just a few years ago. Allow me to explain. If the frequency of attendance changes, then attendance will respond accordingly. For example, if 200 members attend every week the average attendance is, obviously, 200. But if one-half of those members miss only one out of four weeks, the attendance drops to 175. Did you catch that? No members left the church. Everyone is still relatively active in the church. But attendance declined over 12 percent because half the members changed their attendance behavior slightly.