The aim of the survey is to provide large-scale, statistically reliable evidence about a broad range of employment relations and practices in Britain. The data describes key aspects of employment relations, such as management of employment relations, training, employee representation and consultation, collective bargaining, pay determination, health and safety and worker wellbeing and job satisfaction. The 2011 WERS sample consisted of a panel sample containing all the workplaces that had taken part in WERS 2004 and were still in existence in 2011, and a stratified random sample of establishments drawn from the Inter-Departmental Business Register in 2010. Weights were devised to enable the panel sample to be combined with the fresh sample to form a cross-sectionally representative sample. The 2011 study collected data from a representative sample of 2,680 workplaces in Britain: - 2,680 workplace managers responsible for employment relations/HR; - 1,002 worker representatives; - 21,981 employees. The WERS 2011 has four components: a Survey of Managers comprising the Employee Profile Questionnaire (EPQ) and the Management Questionnaire (MQ); a Survey of Worker Representatives (WRQ); a Survey of Employees (SEQ); and a Financial Performance Questionnaire (FPQ) which detailed the financial performance of trading sector establishments in the 12 months before the survey.