| Drift from the churches: Attitude toward Christianity during childhood and adolescence WK Kay, LJ Francis University of Wales Press, 1996 | 316 | 1996 |
| Pentecostals in Britain WK Kay Paternoster Press, 2000 | 159 | 2000 |
| Teenage religion and values LJ Francis, WK Kay Gracewing Publishing, 1995 | 157 | 1995 |
| SCM Core Text Pentecostalism WK Kay Hymns Ancient and Modern Ltd, 2013 | 126 | 2013 |
| Pentecostalism: A very short introduction WK Kay Oxford University Press, 2011 | 122 | 2011 |
| Apostolic Networks in Britain: New Ways of Being Church WK Kay Wipf and Stock Publishers, 2007 | 98 | 2007 |
| The relationship between neuroticism and religiosity among English 15-and 16-year-olds L Francis, PR Pearson, M Carter, WK Kay The Journal of Social Psychology 114 (1), 99-102, 1981 | 98 | 1981 |
| Are introverts more religious? L Francis, PR Pearson, M Carter, WK Kay British Journal of Social Psychology 20 (2), 101-104, 1981 | 85 | 1981 |
| Pentecostal and charismatic studies: A reader W Kay, AE Dyer SCM Press, 2017 | 81 | 2017 |
| Are religious children bigger liars? LJ Francis, PR Pearson, WK Kay Psychological Reports 52 (2), 551-554, 1983 | 79 | 1983 |
| The personality characteristics of Pentecostal ministry candidates LJ Francis, WK Kay Personality and individual differences 18 (5), 581-594, 1995 | 77 | 1995 |
| Psychoticism and attitude to religion WK Kay Personality and Individual Differences 2 (3), 249-252, 1981 | 76 | 1981 |
| Personality and attitude toward Christianity among committed adult Christians M Carter, WK Kay, LJ Francis Personality and Individual Differences 20 (2), 265-266, 1996 | 65 | 1996 |
| Neuroticism and religiosity among English schoolchildren LJ Francis, PR Pearson, WK Kay The Journal of social psychology 121 (1), 149-150, 1983 | 63 | 1983 |
| Are introverts still more religious? LJ Francis, PR Pearson, WK Kay Personality and Individual Differences 4 (2), 211-212, 1983 | 61 | 1983 |
| Youth in Europe III: An International Empirical Study About the Impact of Religion on Life HG Ziebertz, WK Kay, U Riegel Youth in Europe III: An International Empirical Study About the Impact of …, 2009 | 60* | 2009 |
| Research in religious education LJ Francis, WK Kay, WS Campbell Gracewing Publishing, 1996 | 58 | 1996 |
| Religiosity and lie scores: A question of interpretation. LJ Francis, PR Pearson, WK Kay Social Behavior & Personality: an international journal 16 (1), 1988 | 58 | 1988 |
| Role conflict and British Pentecostal ministers WK Kay Journal of Psychology and Theology 28 (2), 119-124, 2000 | 57 | 2000 |
| Psychological type preferences of male British Assemblies of God Theological College students: tough-minded or tender-hearted? WK Kay, LJ Francis, CL Craig Journal of the European Pentecostal Theological Association 28, 6-20, 2008 | 42 | 2008 |
