Work Group Performance: Evaluation by Day of the Week

Investigates the effects of day of the week on work group performance at a contractor‐operated, government‐owned facility that tests aerospace propulsion systems. Focuses on individual employees′contributions towards group performance and excludes the effects of mechanical failures and test equipment problems on group performance. Using five performance measures; hypothesizing that performance, as directly attributed to the employees, would be better on Monday and Friday than performance on Tuesday, Wednesday and Thursday, found results were significant for two of the performance measures. Discusses results and implications for future research.