Dataset for: <strong>Which Electric Vehicle Charging Station to Upgrade? Don´t Trust Your Judgment</strong>

Electric vehicles need to be charged. For maximal efficiency the charging times should be as short as possible. In the US charging stations are classified as Level 1 charging 5 - 10 miles/h , Level 2 25 miles/h and Fast DCFC stations 150 - 1000 miles/h. We asked participants to select one of two upgrades of charging stations that would save most charging time for a vehicle. The alternatives were upgrading L1 (5miles/h) to L2 (25 miles/h) and L2 (25miles/h) to Fast (250 miles/h). 86% of the participants wanted to upgrade to a Fast station, which objectively saves less time than L1 to L2. The second study replicated the first study. 91% of the participants wanted to upgrade to the Fast (250) station. The third study offered alternatives with smaller objective efficiency differences than the earlier studies: upgrading L2 (30) to Fast (150) and Fast (150) to Fast (600). 68% of the participants preferred the second incorrect alternative. Verbal justifications showed that many participants seemed to assume that differences in charging time was proportional to charging time saved. The results illustrate the difficulty to process reciprocal variables and stress the need of using charging time saved when decisions are made about public electric charging stations. <br> The three SPSS (.sav) datafiles in this dataset can also be opened with the free software Jamovi (https://www.jamovi.org/)电动汽车需进行充电，为实现最优充电效率，充电时长应尽可能缩短。在美国，充电站被划分为三个等级：1级充电（Level 1），充电速率为5-10英里/小时；2级充电（Level 2），充电速率为25英里/小时；以及直流快速充电站（Fast DCFC），充电速率为150-1000英里/小时。 本研究邀请参与者从两种充电站升级方案中，选择能最大程度缩短车辆充电时长的选项。两种方案分别为：将1级充电（5英里/小时）升级为2级充电（25英里/小时），以及将2级充电（25英里/小时）升级为直流快速充电站（250英里/小时）。实验结果显示，86%的参与者选择升级至直流快速充电站，但从客观数据来看，该方案相比前一种方案能节省的充电时长更少。 第二项研究重复了第一项实验的流程，最终有91%的参与者选择升级至直流快速充电站（250英里/小时）。第三项研究设置了两组客观效率差异更小的升级方案：将2级充电（30英里/小时）升级为直流快速充电站（150英里/小时），以及将直流快速充电站（150英里/小时）升级为直流快速充电站（600英里/小时）。此时仅有68%的参与者选择了第二种错误方案。 参与者的口头陈述表明，多数参与者错误地认为，充电时长的差异与所节省的充电时长成正比。该研究结果凸显了人们在处理互逆变量时存在的认知困难，同时也强调在公共充电站的相关决策中，应基于节省的充电时长作为评估依据。 本数据集包含三份SPSS格式（.sav）数据文件，也可通过免费开源软件Jamovi（https://www.jamovi.org/）打开。