If you were attending a church worship service in 1955 and then returned to the same church in 1975, the changes would be noticeable but not dramatic. Churches were slow to change over that 20-year period.

If you, however, attended a church worship service in 2000 and then returned to that same church in 2010, there is a high likelihood you would see dramatic changes had taken place in only 10 years.

What, then, are some of the most significant changes? Please allow me to offer some trends from anecdotal information, church consultations and objective research.

As a caveat, some of the data-based research comes from an excellent study, "The National Congregations Study" by Duke University. This study, fortunately, is longitudinal, so it is able to look at changes over many years. But the study is also dated, with the latest data reported in 2007.

From these multiple sources, I have assembled nine changes that have come at a rapid pace in many churches. Please note my perspective. I am offering these from the perspective of a researcher; I am not making qualitative assessments. Also, with every trend there will be thousands of churches that are exceptions to the norm. But these are the changes in the majority of churches in North America:

1. Choirs are disappearing. From 1998 to 2007, the percentage of churches with choirs decreased from 54 percent to 44 percent. If that pace holds to this year, the percentage of churches with choirs is only 37 percent.

2. Dress is more casual. In many churches, a man wearing a tie in a worship service is now among the few rather than the majority. While the degree of casual dress is contextual, the trend is crossing all geographic and demographic lines.

3. Screens are pervasive. Some of you remember the days when putting a projection screen in a worship center was considered a sacrilege. Now most churches have screens. And if they have hymnals, the hymnals are largely ignored and the congregants follow along on the screens.

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