| The complex dynamics of wishful thinking: the critical positivity ratio. NJL Brown, AD Sokal, HL Friedman American Psychological Association 68 (9), 801, 2013 | 336 | 2013 |
| Patient experiences of psilocybin-assisted psychotherapy: an interpretative phenomenological analysis AB Belser, G Agin-Liebes, TC Swift, S Terrana, N Devenot, HL Friedman, ... Journal of Humanistic Psychology 57 (4), 354-388, 2017 | 301 | 2017 |
| A conceptual clarification of the experience of awe: An interpretative phenomenological analysis ET Bonner, HL Friedman The humanistic psychologist 39 (3), 222-235, 2011 | 273 | 2011 |
| The self-expansive level form: A conceptualization and measurement of a transpersonal construct HL Friedman The Journal of Transpersonal Psychology 15 (1), 37, 1983 | 223 | 1983 |
| A survey of measures of transpersonal constructs DA MacDonald, L LeClair, CJ Holland, A Alter, HL Friedman The Journal of Transpersonal Psychology 27 (2), 171, 1995 | 203 | 1995 |
| The Wiley-Blackwell handbook of transpersonal psychology HL Friedman, G Hartelius John Wiley & Sons, 2013 | 190 | 2013 |
| Assessment of humanistic, transpersonal, and spiritual constructs: State of the science DA MacDonald, HL Friedman Journal of humanistic psychology 42 (4), 102-125, 2002 | 187 | 2002 |
| Adaptive leadership: When change is not enough (part one) J Glover, H Friedman, G Jones Organization Development Journal 20 (2), 15, 2002 | 178 | 2002 |
| Spirituality as a scientific construct: Testing its universality across cultures and languages DA MacDonald, HL Friedman, J Brewczynski, D Holland, KKK Salagame, ... Plos one 10 (3), e0117701, 2015 | 175 | 2015 |
| Classifying dogs’(Canis familiaris) facial expressions from photographs T Bloom, H Friedman Behavioural processes 96, 1-10, 2013 | 163 | 2013 |
| Humanistic and positive psychology: The methodological and epistemological divide H Friedman The humanistic psychologist 36 (2), 113-126, 2008 | 156 | 2008 |
| Transpersonal psychology as a scientific field H Friedman International Journal of Transpersonal Studies 21 (1), 19, 2002 | 151 | 2002 |
| Cancer at the dinner table: experiences of psilocybin-assisted psychotherapy for the treatment of cancer-related distress TC Swift, AB Belser, G Agin-Liebes, N Devenot, S Terrana, HL Friedman, ... Journal of Humanistic Psychology 57 (5), 488-519, 2017 | 148 | 2017 |
| A survey of measures of spiritual and transpersonal constructs: Part one-research update DA MacDonald, HL Friedman, JG Kuentzel Journal of Transpersonal Psychology 31 (2), 137-154, 1999 | 141 | 1999 |
| Enlightened or delusional? Differentiating religious, spiritual, and transpersonal experiences from psychopathology CV Johnson, HL Friedman Journal of Humanistic Psychology 48 (4), 505-527, 2008 | 138 | 2008 |
| Connectedness and environmental behavior: Sense of interconnectedness and pro-environmental behavior RE Hoot, H Friedman International Journal of Transpersonal Studies 30 (1), 10, 2011 | 124 | 2011 |
| Adaptive leadership (part two): Four principles for being adaptive J Glover, K Rainwater, G Jones, H Friedman Organization Development Journal 20 (4), 18, 2002 | 113 | 2002 |
| The negative shadow cast by positive psychology: Contrasting views and implications of humanistic and positive psychology on resiliency HL Friedman, BD Robbins The Humanistic Psychologist 40 (1), 87-102, 2012 | 107 | 2012 |
| Transpersonal psychology, physical health, and mental health: Theory, research, and practice LD Elmer, DA MacDonald, HL Friedman The Humanistic Psychologist 31 (2-3), 159-181, 2003 | 97 | 2003 |
| Advances in Parapsychological Research 10 S Krippner, AJ Rock, HL Friedman McFarland, 2021 | 95 | 2021 |
