Why are only 30 people required to fill in questionnaires in order to complete the Natural Church Development church healthy survey?
Why don’t we survey the whole church? Wouldn’t that be more accurate? And what if the church has 300 members? Or even 3000 members? Do we still need just 30 to obtain an accurate health assessment?
NCD International says we need just 30 people; but those 30 should meet certain requirements:
(1) They should have a ministry of some kind in the church, even if just a small one.
(2) They should be a member of a small group. Christian Schwarz defines a small group as a ‘group that is small!’ That is, a small group is a prayer or Bible study group, the music or worship team, the choir, the leadership team, the pastoral care team, the fund-raising task force, the men’s or women’s group, or any committee. A small group is a few people in the church who meet on a regular basis. And after these two criteria:
(3) They should be representative of the demographics of the church.
By means of this survey we are trying to assess the ‘spiritual’ health of the most influential people in the church; we want to discover their thinking (head); their behaviour (hands); and their feelings (heart) with regard to their relationship to God through our church.
If there are people who are not in a small group, who do not have a ministry, should they be included simple because they are influential? The answer is no! If they are that influential they will influence those who do meet the criteria. Disconnected from formal church involvement, even though people of influence, such members will be unable to give answers to questions relating to ministry or small groups.
The survey is not designed to capture to opinions of fringe people. A glance at some of the questions would confirm this; they would not know how to answer.. We want to know how the most influential people in the church perceive such matters as: Do the pastors have too much work today? When it comes to ministry, do the people who serve fit; or are they like square pegs in round holes? We do not want the absolute truth on these matters; only God knows that. We want to know how the responsible people in the church perceive it; because for we human beings, perception is the reality.
And just in case you still think we should survey the whole church, think in terms of a blood test (this is, after all, a church health survey). You do not have to give all your blood. The medical experts can glean a great deal of information from just a small sample.