The Effects of Objective Work-load Variations of Psychological Strain and Post-Work-Load Performance
通过实验室实验，操纵任务数量和难度来模拟定量/定性超负荷、欠负荷和瞬变负荷，测量感知工作量、压力、焦虑等心理紧张指标及后续绩效，发现超负荷比欠负荷更易引发紧张，定性负荷比定量负荷影响更大。
Variations in objective workloads and their effects on psychological and behavioral strain were the focus of this laboratory investigation. Quantitative and qualitative overload, underload, and transient work-load were created by varying the number or difficulty of the problem-solving tasks (anagrams) subjects were given across each of eight trial periods. Overloads were predicted to be more stressful than under-loads, and qualitative workloads were expected to produce greater strain than quantitative workloads. Measures taken included: perceived workload, perceived pressure, task enjoyment, self-esteem, self-reported anxiety, hostility, depression, and post-work-load performance. Results were somewhat supportive of the hypotheses.