Table 2 Parameters analysed in the water barrier and open field assay. Three parameters were recorded during the open field assay: (a) Latency to cross a water barrier in the water barrier assay.

From: Communal breeding affects offspring behaviours associated with a competitive social environment

Factors

Estimate ± SE

Test statistic

P-value

a) Latency to cross a water barrier in the water barrier assay

Rearing background

−2.463 ± 0.911

7.31

0.007

Age

−0.266 ± 0.117

5.17

0.02

b) Activity in the open field assay

Intercept

10.177 ± 0.274

—

—

Rearing background

0.166 ± 0.246

0.67

0.532

c) Time spent in centre in the open field assay

Intercept

1.427 ± 0.107

—

—

Rearing background

−0.105 ± 0.107

0.832

0.372

d) Latency to enter centre in the open field assay

Rearing background

−0.246 ± 0.432

0.32

0.57

  1. (b) activity of subject males, (c) time spent in the centre, and (d) the latency to enter the centre of the open field arena. To obtain normal distributed residuals, we square-root transformed the activity and log-transformed the time spent in the centre of the open field arena. Estimates in (a) and (d) are based on treatment contrasts with CN as the reference and significance testing uses likelihood tests. Estimates for (b) and (c) are based on sum contrasts, and significance testing uses F statistics with a Kenward-Roger approximation for degrees of freedom. P-values < 0.05 are highlighted in bold.
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