188 citations · 1.1k across the 44 of their papers we have counts for
4 papers · 2 filters
Predictive implications of Gompertz's law
Peter Richmond, Bertrand M. Roehner
Gompertz's law tells us that for humans above the age of 35 the death rate increases exponentially with a doubling time of about 10 years. Here, we show that the same law continues…
Effect of marital status on death rates. Part 2: Transient mortality spikes
Peter Richmond, Bertrand M. Roehner
We examine what happens in a population when it experiences an abrupt change in surrounding conditions. Several cases of such "abrupt transitions" for both physical and living soci…
Effect of marital status on death rates. Part 1: High accuracy exploration of the Farr-Bertillon effect
Peter Richmond, Bertrand M. Roehner
The Farr-Bertillon law says that for all age-groups the death rate of married people is lower than the death rate of people who are not married (i.e. single, widowed or divorced).…
The detection of cheating in multiple choice examinations
Peter Richmond, Bertrand M. Roehner
Cheating in examinations is acknowledged by an increasing number of organizations to be widespread. We examine two different approaches to assess their effectiveness at detecting a…