Evaluation studies: participant details

NB: In eval we had 3 catch questions and 2 breaks, since we only had 20 problems (1 task x 4 plot/designs x 5 data)


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Clustering
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107 participants 

who got 
- at least 30% of the 20 study questions correct 
- 3/3 catch questions correct
- passed our training/test which had 4 questions (were allowed the failed marginally on ~1/4 questions)
- were not color-blind, had 'high school graduate / GED' education, are at least 'somewhat' familiar with scatterplots, use scatterplots at least 'occasionally' 

Gender:  82/107 male, 25/107 female, 0/107 other

Age:  in [19,60], mean 31.75, median 31

Country (meaning of codes: http://www.textfixer.com/resources/country-dropdowns.php): 
 in	12
ma	11
id	9
br	8
ve	7
tr	6
rs	4
ru	4
ar	3
de	3
es	3
us	3
bd	2
bg	2
ca	2
hr	2
mk	2
my	2
pk	2
pl	2
pt	2
al	1
au	1
ba	1
co	1
cz	1
do	1
gr	1
it	1
jm	1
md	1
mx	1
nl	1
sa	1
tn	1
uy	1
vn	1

Education:  in [3,8], mean 5.89, median 6, options 0,1,2,3,4,5,6,7,8 but <3 were not allowed to do the study following pre-questions 

Specialization:
Engineering	36
Natural Sciences	7
Medical Sciences	10
Social Sciences	20
Arts and Humanities	9
Other	25
    
Familiarity with scatterplot: in [2,4], mean 2.84, median 3, options 0,1,2,3,4 but <2 were not allowed to do the study following pre-questions 

Use of scatterplots: in [2,4], mean 2.71, median 3, options 0,1,2,3,4 but <2 were not allowed to do the study following pre-questions 

Difficulty of experiment: in [0,4], mean 2.11, median 2, options 0,1,2,3,4



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Correlation
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127 participants 

who got 
- 3/3 catch questions correct
- passed our training/test which had 4 questions (were allowed the failed marginally on ~1/4 questions)
- were not color-blind, had 'high school graduate / GED' education, are at least 'somewhat' familiar with scatterplots, use scatterplots at least 'occasionally' 
*note we could not have the 30% correct answers check here since no one could have got the exact correct answers (remember the buttons did not match the correct answer)

Gender:  95/127 male, 32/127 female, 0/127 other

Age:  in [20,88], mean 32.64, median 32

Country (meaning of codes: http://www.textfixer.com/resources/country-dropdowns.php): 
in	14
ve	14
ru	10
id	9
us	7
ma	6
rs	6
sa	6
bg	5
br	5
es	5
ba	3
il	3
it	3
mx	3
pt	3
vn	3
ar	2
gr	2
my	2
ph	2
tr	2
ae	1
aq	1
au	1
bd	1
cl	1
dz	1
eg	1
gb	1
md	1
pk	1
ro	1
tn	1

Education:  in [3,8], mean 5.90, median 6, options 0,1,2,3,4,5,6,7,8 but <3 were not allowed to do the study following pre-questions 

Specialization:
Engineering	62
Natural Sciences	11
Medical Sciences	9
Social Sciences	7
Arts and Humanities	8
Other	30
    
Familiarity with scatterplot: in [2,4], mean 3.01, median 3, options 0,1,2,3,4 but <2 were not allowed to do the study following pre-questions 

Use of scatterplots: in [2,4], mean 2.86, median 3, options 0,1,2,3,4 but <2 were not allowed to do the study following pre-questions 

Difficulty of experiment: in [0,4], mean 2.81, median 3, options 0,1,2,3,4




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Outlier
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119 participants 

who got 
- at least 30% of the 20 study questions correct 
- 3/3 catch questions correct
- passed our training/test which had 4 questions (were allowed the failed marginally on ~1/4 questions)
- were not color-blind, had 'high school graduate / GED' education, are at least 'somewhat' familiar with scatterplots, use scatterplots at least 'occasionally' 

Gender:  89/119 male, 30/119 female, 0/119 other

Age:  in [18,66], mean 32.69, median 32

Country (meaning of codes: http://www.textfixer.com/resources/country-dropdowns.php): 
ru	20
ve	20
br	6
es	5
hr	5
id	5
in	5
us	5
sa	4
it	3
pt	3
rs	3
ua	3
ar	2
ba	2
gb	2
ph	2
pl	2
tr	2
ae	1
af	1
au	1
bg	1
cl	1
dk	1
dz	1
eg	1
fr	1
gr	1
gt	1
ie	1
il	1
lk	1
lv	1
ma	1
nl	1
no	1
pk	1
vn	1

Education:  in [3,8], mean 5.56, median 6, options 0,1,2,3,4,5,6,7,8 but <3 were not allowed to do the study following pre-questions 

Specialization:
Engineering	50
Natural Sciences	13
Medical Sciences	11
Social Sciences	8
Arts and Humanities	11
Other	26
    
Familiarity with scatterplot: in [2,4], mean 3.08, median 3, options 0,1,2,3,4 but <2 were not allowed to do the study following pre-questions 

Use of scatterplots: in [2,4], mean 2.96, median 3, options 0,1,2,3,4 but <2 were not allowed to do the study following pre-questions 

Difficulty of experiment: in [0,4], mean 2.01, median 2, options 0,1,2,3,4


