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Table 7 Two-factor solutions from obliquely-rotated factor analyses applied to the main variables from the three behavioral tests.

From: Effects of environmental and physiological covariates on sex differences in unconditioned and conditioned anxiety and fear in a large sample of genetically heterogeneous (N/Nih-HS) rats

(A) MALES   
  Factor 1 Factor 2
Elevated "zero-maze"   
   Entries into open sections 0.71 -
   Number of SAPs 0.75 -
Two-way shuttlebox avoidance conditioning   
   Time spent freezing trials 1-5 -0.50 -
   Avoid40+ITC40 0.44 -
Automated novel-cage activity   
Distance travelled min 0-5
Distance travelled min 25-30
-
-
0.86
0.87
Eigenvalues
% of accumulated explained variance:
1.68
28.1
1.41
51.6
Correlation between factors = 0.13   
(B) FEMALES   
  Factor 1 Factor 2
Elevated "zero-maze"   
   Entries into open sections - 0.85
   Number of SAPs - 0.85
Two-way shuttlebox avoidance conditioning   
   Time spent freezing trials 1-5 -0.30 -
   Avoid40+ITC40 0.40 -
Automated novel-cage activity   
Distance travelled min 0-5
Distance travelled min 25-30
0.82
0.78
-
-
Eigenvalues
% of accumulated explained variance:
1.62
26.9
1.38
49.9
Correlation between factors = 0.11   
  1. Oblique two-factor solution (Direct Oblimin) with the 6 most relevant variables (from the 3 tests) in male (A) and female (B) N/Nih-HS rats. Only loadings with absolute values ≥ 0.30 are shown.