Which behavior indicates that a worker may not be performing tasks effectively?

The behavior that indicates a worker may not be performing tasks effectively is one where they work much faster or more slowly than usual. These fluctuations in work speed can signify various underlying issues, such as stress, fatigue, diminished focus, or even personal problems.

When a worker's pace deviates significantly from their normal rate, it can affect the quality of their work. Working too quickly may lead to rushed tasks and errors, while working much more slowly could indicate a lack of motivation or a struggle to keep up with job demands.

In a workplace setting, consistent performance metrics help ensure tasks are completed efficiently and safely. Therefore, noticing an unusual change in a worker's speed can serve as a critical cue for potential performance issues that may require further observation or intervention.