The influence that psychology has on wider society has been highlighted by the tests used to select Conservative Party candidates. Those wishing to become a parliamentary candidate for the party are first required to attend a parliamentary assessment board. There they have to complete five exercises, which Chartered Psychologist Professor Jo Silvester has helped design, the Economist reports.

People taking the test are required to deal with scenarios such as public speaking, an interview,  a group exercise, written exam and an in-tray test - and Professor Silvester from Goldsmiths, University of London, explained this approach helps to identify the candidates who are not up to the job.

Professor Silvester noted even individuals with desirable backgrounds who lack the necessary skills are found out by the process, with a person only being able to apply for seats once he or she has proven their abilities.

The article also looks at the methods the other main parties use to choose their Westminster candidates.

Professor Silvester was interviewed about her work in our monthly magazine The Psychologist on the eve of the last general election.