Belief in God or a universal spirit
Historical Gallup findings cited in the essay show that affirmative responses remained high for much of the twentieth century and declined in later measurements. The question combined belief in God with belief in a universal spirit, so it should not be read as a precise count of theists alone.
| Survey year | Answered yes |
|---|---|
| 1947 | 94% |
| 1953–1954 | 99% |
| 1978 | 94% |
| 1994 | 96% |
| 2007 | 92% |
| 2011 | 91% |
| 2014 | 89% |
| 2018 | 80% |
Other historical surveys separated belief in God, uncertainty and belief in a universal spirit. One 2007 set of results reported 86% who said they believed in God, 8% who were unsure and 6% who did not believe. A differently worded question recorded 78% believing in God, 14% in a universal spirit and 7% in neither.
Different concepts under one label
Respondents may refer to very different ideas when they affirm belief. Christian traditions may describe God through the Trinity. Wiccan traditions commonly speak of a Goddess and God. Zoroastrian thought includes Ahura Mazda and a moral account of beneficent and destructive forces. Islam, Judaism and Sikhism generally emphasize one indivisible deity, while Deism describes a creator who is not understood as continually intervening in the world. Others use language such as higher power or universal spirit.
For related background, see Christianity, Wicca, Islam, Judaism, ideas about gods and goddesses and Deism.
Belief, uncertainty and non-theistic views
The essay also discusses research methods intended to reduce pressure on respondents. Indirect techniques can sometimes reveal views that direct questions miss, but their estimates depend on assumptions and should be treated as research findings rather than exact population counts. For introductory definitions, compare Atheism and Agnosticism.