The visualization community regards visualization literacy as a necessary skill. Yet, despite the recent increase in research into visualization literacy by the education and visualization communities, we lack practical and time-effective instruments for the widespread measurements of people's comprehension and interpretation of visual designs. We present Mini-VLAT, a brief but practical visualization literacy test. The Mini-VLAT is a 12-item short form of the 53-item Visualization Literacy Assessment Test (VLAT). The Mini-VLAT is reliable (coefficient omega = 0.72) and strongly correlates with the VLAT. Five visualization experts validated the Mini-VLAT items, yielding an average content validity ratio (CVR) of 0.6. We further validate Mini-VLAT by demonstrating a strong positive correlation between study participants' Mini-VLAT scores and their aptitude for learning an unfamiliar visualization using a Parallel Coordinate Plot test. Overall, the Mini-VLAT items showed a similar pattern of validity and reliability as the 53-item VLAT. The results show that Mini-VLAT is a psychometrically sound and practical short measure of visualization literacy.

翻译：可视化领域将可视化素养视为一项必备技能。然而，尽管近年来教育与可视化领域对可视化素养的研究有所增加，但我们仍缺乏实用且高效的工具，用于大规模测量人们对视觉设计的理解与解读能力。本文提出Mini-VLAT，一种简洁实用的可视化素养测试工具。Mini-VLAT是包含53个题项的可视化素养评估测试（VLAT）的12题简版。该工具信度良好（系数omega = 0.72），且与VLAT高度相关。五位可视化专家对Mini-VLAT题项进行验证，其平均内容效度比（CVR）为0.6。我们通过平行坐标图测试进一步验证了Mini-VLAT的有效性：研究参与者的Mini-VLAT得分与其学习陌生可视化的能力呈显著正相关。总体而言，Mini-VLAT题项在效度和信度方面呈现出与53题VLAT相似的模式。结果表明，Mini-VLAT是一种心理测量学可靠且实用的可视化素养简短测量工具。