Multivariate mapping for experienced users: comparing extrinsic and intrinsic maps with univariate maps

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Examples of questions asked in the study

Task type	Number of variables in the task	Question	Operation type	Question type
T1v	1	Indicate the area visited by the least number of individual tourists.	extracting a single value	open
		What hotel room price per night is possible in the area marked with symbol ‘X’?PLN 42.8/PLN 75.6/PLN 137.9/PLN 332.2		closed
		In which areas among those marked with letters are the trail lengths the shortest?A/B/C/D		closed
T2v	2	What is the income from tourism in the area visited by the highest number of tourists?PLN 7.5K–10K per person/PLN 10.1K–15K per person/PLN 15.1K–25K per person/PLN 25.1K–47.5K per person	localising an area according to values of two variables	closed
		Indicate the area with the lowest hotel room price per night and, at the same time, the lowest number of restaurants.		open
		Among areas with 11–20 tourists per 10 km of bike routes, indicate the one with the shortest length of bike trails.		open
T4v	4	In which group of areas marked with letters are the values of all variables the lowest?A/B/C/D	finding areas representing extreme values of all four variables	closed
		Indicate the area with extreme (min or max) values of at least three variables.		open
		Are there areas with the highest values for all four indices?yes/no		closed

Accuracy of different task types using the three tested maps

Task type	Map type	Accuracy rate %	Cochran's Q	p	post hoc groups	Bonferroni post hoc	p
T4v	M4vM2vM1v	73.3373.33100.00	4.000	0.135	-	-	-
T2v	M4vM2vM1v	60.0060.0093.33	4.545	0.103	-	-	-
T1v	M4vM2vM1v	73.3393.33100.00	6.500	0.039 *	M4v – M2vM2v – M1vM1v – M4v	−1.837−0.612−2.449	0.1991.0000.043 *

Fixation duration on legend AOI while using the three tested maps

Task type	Map type	M (sec.)	SD	Friedman's Fr	p	post hoc groups	Bonferroni post hoc	p
T4v	M4vM2vM1v	12.165.512.10	8.7503.8441.453	24.400	<0.001 ***	M4v – M2vM2v – M1vM1v – M4v	2.1912.7394.930	0.0850.019 *0.000 ***
T2v	M4vM2vM1v	21.619.1610.40	12.2374.56610.878	14.533	<0.001 ***	M4v – M2vM2v – M1vM1v – M4v	3.469−0.3653.104	0.002 **1.0000.006 **
T1v	M4vM2vM1v	8.5610.525.33	5.66912.6003.933	0.533	0.766	-	-	-

Answer time while solving different task types using the three tested maps

Task type	Map type	M (sec.)	SD	Friedman's Fr	p	post hoc groups	Bonferroni post hoc	p
T4v	M4vM2vM1v	49.4443.9939.58	20.00313.30021.145	3.733	0.155	-	-	-
T2v	M4vM2vM1v	66,7157.2759.86	25.92524.78232.335	3.733	0.155	-	-	-
T1v	M4vM2vM1v	35.8944.4827.32	12.14737.58215.248	2.133	0.344	-	-	-

Fixation duration on maps with legends while solving different task types using the three tested maps

Task type	Map type	M (sec.)	SD	Friedman's Fr	P	post hoc groups	Bonferroni post hoc	p
T4v	M4vM2vM1v	27.4120.1714.66	12.03610.7627.973	8.533	0.014 *	M4v – M2vM2v – M1vM1v – M4v	1.4611.4612.921	0.4320.4320.010 **
T2v	M4vM2vM1v	31.8632.9721.10	14.36818.86815.902	3.333	0.189	-	-	-
T1v	M4vM2vM1v	16.2121.0410.71	5.55216.3895.249	12.133	0.002 **	M4v – M2vM2v – M1vM1v – M4v	-0.1833.1042.921	1.0000.006 **0.010 **

Rating of task difficulty after using the three tested maps

Task type	Map type	M	SD	Friedman's Fr	p	post hoc groups	Bonferroni post hoc	p
T4v	M4vM2vM1v	2.801.872.00	0.2620.2150.239	8,619	0.013 *	M4v – M2vM2v – M1vM1v – M4v	2.373−0.6391.734	0.0531.0000.249
T2v	M4vM2vM1v	2.802.802.33	0.3270.3120.232	2.476	0.290	-	-	-
T1v	M4vM2vM1v	2.202.001.40	0.2000.2580.131	11.886	0.003 **	M4v – M2vM2v – M1vM1v – M4v	0.7301.8262.556	1.0000.2040.032 *

Fixation duration on map AOI while using the three tested maps

Task type	Map type	M (sec.)	SD	Friedman's Fr	P	post hoc groups	Bonferroni post hoc	p
T4v	M4vM2vM1v	15.2514.6612.57	7.2698.4887.564	0.933	0.627	-	-	-
T2v	M4vM2vM1v	10.2523.8110.69	5.15916.4157.043	6.933	0.031 *	M4v – M2vM2v – M1vM1v – M4v	−2.5561.826−0.730	0.032 *0.2041.000
T1v	M4vM2vM1v	7.6410.525.38	4.7387.9183.309	6.933	0.031 *	M4v – M2vM2v – M1vM1v – M4v	−1.8262.5560.730	0.2040.032 *1.000