Employee engagement surveys can provide managers with early warning of issues of concern before they lead to major employee relations and staff retention difficulties.
The design of an employee engagement questionnaire should be based on the requirements of the organisation and will depend on a range of factors including the target group. Typically it will cover areas such as management style and satisfaction with pay and benefits.
There should be sufficient questions on each area to provide useful data, but the employer should ensure that the survey is not so long that it results in "completion fatigue".