Electronic monitoring of employees’ communication has doubled since 1997, according to a survey of 2,133 human resource managers released recently by the American Management Association (AMA). Nearly three-quarters of major U.S. companies responding to the survey said they record and review their employees’ telephone calls, E-mail messages, Internet connections, and computer files.

Monitoring of employees’ communications and job performance has increased this year to 74 percent of responding employers, the AMA reported in its survey o workplace monitoring and surveillance.

The Washington Employers Association recommends that electronic monitoring policies be clearly defined and disseminated to all employees through all communication channels.