A team from The University of Queensland found that employees feel more stressed at work when they are interrupted with unnecessary or unreasonable tasks. The study looked at how these interruptions affect stress and job performance.

“We found that the type of interruption plays an important role in how people react,” the researchers explain. “If a person is interrupted with a request to complete a task they perceive as illegitimate, which is pointless or outside their responsibilities, we found performance is compromised.”

Hindering progress

People believe these interruptions slow their progress on regular tasks, leading to more anxiety and cognitive problems.

In Phase 1 of the study, 144 participants recalled a time they were interrupted at work with both a legitimate and an illegitimate task. They then answered questions about their stress and cognitive reactions to each.

In Phase 2, 231 participants played the role of a Human Resources Manager in a simulation, responding to 8 emails in 20 minutes.

“During this simulation, the participants were then interrupted with an urgent task from the CEO which was either inside or outside the scope of their role,” the researchers explain.

“Afterwards, we assessed their performance on the work simulation, and they were asked to report on their levels of stress and perceived ability to complete the tasks.”

Boosting productivity

The researchers say the study’s results offer valuable insights into improving workplace productivity.

“It’s important for organizations to understand the types of interruptions their employees are dealing with, and consider removing or limiting unnecessary or unreasonable tasks that can hinder performance,” they conclude.

“From an employee perspective, it’s important to understand how their requests may impact on their coworkers.

“Before you interrupt a colleague with a task, stop and think about how they may perceive it and how their productivity will be affected.

“If it might be perceived as pointless or outside their role, perhaps find another way for it to be completed.”