age | trait | Log (duration of struggling) | Log (latency to leave the hand) | activity | number of calls | Log (latency to reach the mother) | duration of activity |
---|---|---|---|---|---|---|---|
day of birth | log (duration of struggling) | – |  |  |  |  |  |
 | log (latency to leave the hand) | -0.4 (<0.01) | – |  |  |  |  |
day 1 | activity | 0.06 (n.s.) | -0.14 (n.s.) | – |  |  |  |
 | number of calls | 0.07 (n.s.) | -0.16 (n.s.) | 0.05 (n.s.) | – |  |  |
 | log (latency to reach the mother) | -0.18 (n.s.) | 0.23 (n.s.) | -0.43 (<0.01) | -0.04 (n.s.) | – |  |
day 8 | duration of activity | -0.09 (n.s.) | -0.02 (n.s.) | 0.17 (n.s.) | 0.31 (<0.05) | -0.06 (n.s.) | – |