Table 2.

Behavioral observation summary: description of testing environments and behavioral sampling methods

Observations Sampling method Description
Dyads
Home cage 10 sec focal samplesa 10 observations per subject per week
3 month 5 min focal samplesb 4 observations per subject in group cage
6 month 5 min focal samplesb 4 observations per subject in group cage
Tetrads
3 month 5 min focal samplesb 20 observations per subject in group cage
6 month 5 min focal samplesb 20 observations per subject in group cage
Social groups 5 min focal samplesb 10 observations per subject in group cage
Other testing
Mother preference 2 min focal samplesb 20 observations per subject

  • The sampling method is by Altmann (1974).

  • ↵ a One-zero behavior scoring.

  • ↵ b Duration and frequency behavior scoring.