Table 1. Percentage of explained variance for linear regression analyses of the predictions of several theoretical models with empirical data of five birds (P1 - P5)
Model Properties P1 P2 P3 P4 P5
Dummy variable
  
73.7
75.4
46.0
42.9
53.8
Feature summation model
  
84.8
78.8
58.4
55.7
63.3
Multiple regression
 variably weighted linear features
86.9
78.7
79.7
66.1
69.9
Configural cue model
  
80.2
74.2
56.4
57.7
66.7
Configural cue model
  high similarity
84.3
78.0
58.6
56.0
65.4
 Configural cue model
 individual attention weights
80.4
74.3
65.5
63.5
69.5
Configural cue model
 high similarity
 &
individual attention weights
84.9
78.3
70.4
64.3
67.3
ALCOVE
  
73.6
73.6
50.4
45.4
55.6
Multiple regression
  dummy variable & frequency of stimulus presentation
86.9
83.9
79.0
66.6
69.4