Professor Sir David Spiegelhalter
speaker
351 appearances
17 recordings
1 series
first heard Oct 2010
last heard Jan 2021
Professor Sir David Spiegelhalter’s voice in public audio — every appearance, attributed to the second.
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Appearances
Well, that's in official statistics.
That is true.
Next down is Three Star.
Now these are ones which I regard as really good surveys.
Big expensive surveys where they make a huge effort to get a representative sample, a random sample, and interview them with full assurance of confidentiality and with great care.
Now, these numbers I would trust reasonably well.
I particularly trust their trends, and I think they're accurate to about sort of plus minus 20%.
They're not perfect.
They're not perfect at all.
But they're good enough for planning health services and for evaluating what's going on.
The kind of three-star statistics that are generally quoted are to do with how often people had sex, the changes in same-sex behavior, how many sexual partners people have had in their lifetime, and so on.
I think the ones that people seem to pick up on immediately are the findings that the frequency of sex among opposite-sex couples has gone down over the last 20 years, from a median couple having sex five times every four weeks, it's gone down from
to four times to three times now.
And all sorts of people put all sorts of reasons about why that might have happened to do with the internet and so on.
I think the other one is that the same-sex behaviour in young women has increased massively.
Probably this is one of the biggest changes of behaviour over the last 20 years.
Now, one in six reports some same-sex experience and one in 20 having a same-sex partner over the last five years.
Alfred Kinsey was a US biologist who conducted these massive surveys in the 1940s in which he interviewed around 15,000 men and women.
using his, you know, very idiosyncratic interview technique where he would sit people down with a cigarette and chat to them in the vernacular, asking questions about all aspects of their life.
And he also had this form of questioning where people had to actively deny their behaviour.
Showing 61–80 of 351 · page 4 of 18
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