Selection Condition
Deletion Condition

No of Participants 103
Pairs /participant 10
No of Pairs 1030
No of Participants 101
Pairs /participant 10
No of Pairs 1010

Analysis 1: contingency tables (descriptive statistics)

Attraction Effect
Repulsion Effect
A B D
A
TARGET
COMPETITOR
762
(73.980582524272 %)
COMPETITOR
COMPETITOR
42
(4.0776699029126 %)
COMPETITOR
DECOY
15
(1.4563106796117 %)
B
TARGET
TARGET
125
(12.135922330097 %)
COMPETITOR
TARGET
67
(6.504854368932 %)
TARGET
DECOY
7
(0.67961165048544 %)
D
DECOY
TARGET
5
(0.48543689320388 %)
DECOY
COMPETITOR
3
(0.29126213592233 %)
DECOY
DECOY
4
(0.38834951456311 %)
A B D
A
TARGET
COMPETITOR
744
(73.663366336634 %)
COMPETITOR
COMPETITOR
74
(7.3267326732673 %)
COMPETITOR
DECOY
8
(0.79207920792079 %)
B
TARGET
TARGET
88
(8.7128712871287 %)
COMPETITOR
TARGET
90
(8.9108910891089 %)
TARGET
DECOY
1
(0.099009900990099 %)
D
DECOY
TARGET
5
(0.4950495049505 %)
DECOY
COMPETITOR
0
(0 %)
DECOY
DECOY
0
(0 %)

Analysis 2: inferential statistics (for R code)

ScoresA (10):
+1 chose Target
+0 chose Competitor
+0.5 chose Decoy
ScoresB (10):
+1 chose Competitor
+0 chose Target
+0.5 chose Decoy
Observation = ScoreA/10 - ScoreB/10
observation = 0 no bias (no attraction or repulsion effect)
observation > 0 attraction effect
observation < 0 repulsion Effect
Selection Condition attraction scores
Deletion Condition attraction scores