Ipsos MORI's latest Perils of Perception release explores perceptions and reality about sexual behaviour in Great Britain and the US.

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On average, how
many times do you
think men/women
aged 18-29 in your
country have had
sex in the last
four weeks?
4
5
14
14
US
Great
Britain
6
5
17
17
US
Great
Britain
Men’s Sexual Activity
Women’s Sexual Activity
Avg. guess
by men
Avg guess
by women
14 13
15 14
FREQUENCY OF
SEX AMONG
YOUNG
Avg. guess
by men
Avg guess
by women
23 12
22 12
Reality Avg. guess

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On average, how
many sexual partners
do you think
men/women aged
45-54 in your
country have had?
19
17
17
20
17
16
US
Great Britain
Australia
12
8
8
20
17
16
US
Great Britain
Australia
Men’s Sexual Partners
Women’s Sexual Partners
Avg. guess
by men
Avg guess
by women
21 18
16 19
15 17
NUMBER OF
SEXUAL
PARTNERS
Reality Avg. guess
Avg. guess
by men
Avg guess
by women
27 13
15 18
18 13

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• The Perils of Perception – Why We’re Wrong
About Nearly Everything is published by
Atlantic Books on 6th September 2018 – for
more info see www.perils.ipsos.com
• 3465 interviews were conducted in October
2017.
• The survey was conducted in 3 countries
around the world, via the Ipsos Online Panel
system in Australia, Great Britain and USA.
• 1000-1500 individuals aged 16-64 or 18-64
were surveyed in Australia, Great Britain
and USA.