Tag Archives: Ethics

Discussion #19 – “You’re Not My Type” – the Science and Ethics of Personality Testing

We’re joined this week by musician, writer and director Polash Larsen for a critical look at the world of “personality testing” and in particular the famous Myers-Briggs Type Indicator which categorizes people (“personalities”) as four-letter codes (e.g. ENTP).

If you like Myers-Briggs, I should warn you that we don’t (much). As gentlemen scientists, we’re not fond of any scheme that seeks to linearize a complex, non-linear system – especially when that scheme is then used as a guide for how to treat other people.

Calling someone (or yourself) an ENTP is fine as a game, but claiming it’s somehow scientific is wrong. It’s arbitrary and made up. And then using it to pre-judge people – well, that raises ethical questions.

chimpanzeeENTPs on the prowl

Personality testing and Myers Briggs in particular is very popular in certain circles (e.g. recruiting). The assumption that people have unified “personalities” and that these don’t change over time is common enough to have become a part of our language (she’s not my “type”). There’s something comforting about labelling other people and yourself.

Polash puts forward a plausible hypothesis about this – do we just label ourselves to be who we want to be?

[By the way, the soundtrack for today’s podcast is Paula Abdul’s Opposites Attract. Don’t ask us to explain – just go with us on this one.]

She was our type (in 1989)

Update Monday 2/11: BTW Paula Abdul sends her love! (no, really)

Horoscopes and fortune telling are fun, but we don’t hire and fire based on them (although, see footnote about Raymond Domenach below). By putting people in boxes, we deny them the opportunity (the right!) to surprise us. Labelling people has a painful history – let’s just be careful.

Special note: we should really issue a (mild) bad language warning for this week 🙂

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1Wikipedia entry for the Myers-Briggs Type Indicator.

2Uncovering the Secret History of Myers-Briggs – excellent piece by Merve Emre.

3Stephen Jay Gould gives a wonderful example of reification in a devastating critique of IQ testing and the concept of intelligence in A Mismeasure of Man

4Explaining the term “bogan” to a non-Australian is always difficult. Maybe the best way is to direct the interested reader to Things Bogans Like.

5The French soccer team was chosen using psychology (no Scorpios!) Raymond Domenach Looks to the Stars

6If you want to find out more about moral psychology (and chickens) check out this page.

Discussion #8 – Memes, Psychology and Religion – Are we better than we used to be?

This week we welcome John Hanly, our latest guest on the audio blog who has a special personal connection to The Gentlemen Scientists – he is Brian’s father! John has had a long, varied and fascinating career as a Catholic priest in training, a psychologist, businessman and consultant and writer – a true polymath. Tonight he joins us and applies his formidable intellect to questions of memetics, psychology, religion and ethics.

Like many of us, John has a keen and active interest in both science and religion. As the new century brings exciting cross-collaborative developments (such the scientific study of meditation), these also bring new opportunities for us to reconcile what has previously seemed incompatible. The Gentlemen Scientists believe that rambling conversations such as this week’s discussion are more and more the need of the hour.

Along the way we discuss why childhood traumas can so deeply affect adult life, how cognitive behaviour therapy (CBT) works, issues of determinism and free will; Dawkin’s definition of the “meme”, the mechanisms of “cultural transmission” and why memetics hasn’t contributed serious results to science; how Buddhist adepts modify their brains to achieve detachment, social learning theory and speculations on why advertising works.

Lord_of_the_FliesImage courtesy catholicvote.org

And we are not afraid of asking the big questions – we finish up by considering the idea of “moral progress” – are we morally and ethically better off as a human society than we used to be – or are we, as in The Lord of the Flies, just savages in slacks?


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1John Conway’s Game of Life is the most famous example of a class of mathematical model systems called cellular automata. It exhibits highly complex and unpredictable emergent behaviours from a set of trivially simple rules.

2This page on Encyclopedia Britannica has a good summary of epigenetics, the modification of gene expression by environment. Epigenetic effects have become better understood in recent years and have modified our views on the mechanisms that drive genetic inheritance.

3The amygdala is an ancient structure within the limbic system which integrates sensory and visceral inputs in time.

4Research with Buddhist monks was done at the University Wiscosin-Madison and reported in the book ‘Happiness’ by Matthieu Ricard. A related talk can be found on TED Talks.

5Explanation of Jung’s theory of archetypes.

6Anti-drink-driving campaigns in Australia run bt the Transport Accident Commission (TAC) have been enormously succesful over the last two decades, significantly reducing Australia’s road toll.

7Donald Rumsfeld’s famous remarks about “unknown unknowns” – although this has long been a subject of ridicule, his argument is excellent and correct.

8“The Surprising Decline of Violence” – Steven Pinker