What Leanne ten Brinke has said about Parenting and personality development

2 quotes · 1 episode · Sep 7, 2026

Leanne ten Brinke, Psychologist, director of the Truth and Trust Lab at the University of British Columbia, and author of Poisonous People, has been quoted on Parenting and personality development 2 times in 1 episode of The Diary Of A CEO with Steven Bartlett, most recently on September 7, 2026. Each quote below is verbatim and links to the moment it was said.

In their words

Ten Brinke said variation in psychopathy and narcissism is about half genetic and half environmental.
“the variation in someone's score on that personality trait is about 50% genetic and about 50% environmental”
The Diary Of A CEO with Steven Bartlett: Human Lie Detector: The #1 Sign They’re Lying To You, Catch Liars Instantly! | Dr Leanne ten Brinke (Sep 7, 2026) · Listen from 38:26
Ten Brinke said early intervention training parents in warm, responsive parenting can reduce development of psychopathic traits in children.
“early intervention with kids is. really can help reduce the likelihood of them developing high levels of psychopathic traits as they grow older”
The Diary Of A CEO with Steven Bartlett: Human Lie Detector: The #1 Sign They’re Lying To You, Catch Liars Instantly! | Dr Leanne ten Brinke (Sep 7, 2026) · Listen from 41:46

Human Lie Detector: The #1 Sign They’re Lying To You, Catch Liars Instantly! | Dr Leanne ten Brinke
The Diary Of A CEO with Steven Bartlett · Sep 7, 2026 · 1 h 44 min
Psychologist Leanne ten Brinke tells Steven Bartlett how to detect lies, explains the Dark Tetrad of personality traits, and offers rules for dealing with toxic people.