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Table 6 ANCOVA analyses, separating males and females, for the effects of batch on behavioural variables from each sex, after taking "body weight" as a quantitative covariate.

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

   

Variable

 

Batch

Body weight

ZM-E

F =

P =

7.0

< .001

5.0

< .05

ZM-T

F =

P =

7.1

< .001

3.2

n.s.

ZM-SAP

F =

P =

37.2

< .001

0.7

n.s.

NACT-DIST5

F =

P =

6.3

< .001

0.8

n.s.

NACT-DIST30

F =

P =

2.4

< .05

0.4

n.s.

FREEZ

F =

P =

4.9

< .001

4.1

< .05

SHAV-ITC

F =

P =

0.5

n.s.

2.0

n.s.

(B) FEMALES

   

Variable

 

Batch

Body weight

ZM-E

F =

P =

2.7

< .05

1.6

n.s.

ZM-T

F =

P =

5.0

< .001

1.8

n.s.

ZM-SAP

F =

P =

40.7

< .001

0.3

n.s.

NACT-DIST5

F =

P =

5.3

< .001

0.4

n.s.

NACT-DIST30

F =

P =

2.6

< .05

0.0

n.s.

FREEZ

F =

P =

5.6

< .001

1.6

n.s.

SHAV-ITC

F =

P =

5.3

< .001

0.1

n.s.

  1. ANCOVA (analysis of covariance) analyses, separately for each sex and including "body weight" as a quantitative covariate, for ZM test, novel-cage activity and shuttlebox variables. See Table 1 for other details and for variable symbols.