PMP Project Management Professional Study Guide, Third Edition (Certification Press)

NPV calculates the present value of monies returned on a project for each time period the project lasts.

Approximately 55 percent of oral communication is non-verbal. Facial expressions, hand gestures, and body language contribute to the message.

The quantifiable terms and values used to measure a process, activity, or work result. Operational definitions are also known as metrics.

This theory posits that workers are motivated by a sense of commitment, opportunity, and advancement. Workers will work if they are challenged and motivated.