基于任务的乘员脑力负荷典型主观评价方法研究

为研究三种脑力负荷主观评价量表即Cooper-Harper量表、SWAT量表以及NASA-TLX量表能否对装甲车辆乘员信息作业脑力负荷进行测量,通过实验任务,以任务完成时间和量表得分为指标,对三种量表的敏感性以及聚合效度进行对比研究。研究结果表明:SWAT量表的敏感性要略高于CH量表以及NASA-TLX量表,SWAT量表与NASA-TLX量表的聚合效度较高,CH量表与SWAT量表以及NASA-TLX量表的聚合效度比较低,CH量表与后两种量表测定结果一致性较差;通过SWAT量表与NASA-TLX量表进行模糊综合评判比较得出NASA-TLX量表要优于SWAT量表。综上所述,NASA-TLX量表是三种量表中测量乘员脑力负荷较为理想的工具。

Study on Typical Subjective Evaluation Method of Mental Workload of Occupant Based on Task

The Cooper-Harper scale, the SWAT scale and the NASA-TLX scale were used to measure the mental load of the armored vehicle occupant information. The task was completed by the task completion time and the scale scores were used as indicators to compare the sensitivity and aggregation validity of the three scales. The results showed that the sensitivity of SWAT was slightly higher than that of Cooper-Harper scale and NASA-TLX, and the aggregation efficiency of SWAT and NASA-TLX was higher, but Cooper-Harper scale and SWAT scale and NASA- TLX scale was lower than that of NASA-TLX scale, and the NASA-TLX scale was superior to the NASA-TLX scale. The NASA-TLX scale was superior to the NASA-TLX scale. In the SWAT scale. In summary, the NASA-TLX scale is an ideal tool for measuring the workload of occupants in three scales.