Fig 1.
Representing cardinalities using proportions (left), numerical annotations (middle), and both (right); top: Euler, bottom: Linear.
Table 1.
Complexity of five-sets data.
Table 2.
Complexity of seven-sets data.
Fig 2.
(from left: ED-P, ED-N, ED-P&N).
Fig 3.
(from left: LD-P, LD-N, LD-P&N).
Fig 4.
Concurrent curves are depicted in black.
Fig 5.
The first training page.
Fig 6.
The first explanation page.
Fig 7.
A question designed to identify inattentive participants.
Table 3.
ED: Overall accuracy analysis.
Table 4.
ED: Overall time analysis.
Table 5.
ED: Set cardinality accuracy analysis.
Table 6.
ED: Set cardinality time analysis.
Table 7.
ED: Intersection cardinality accuracy analysis.
Table 8.
ED: Intersection cardinality time analysis.
Table 9.
LD: Overall accuracy analysis.
Table 10.
LD: Overall time analysis.
Table 11.
LD: Set cardinality accuracy analysis.
Table 12.
LD: Set cardinality time analysis.
Table 13.
LD: Intersection cardinality accuracy analysis.
Table 14.
LD: Intersection cardinality time analysis.