by Guillaume Souchay » Tue Apr 28, 2015 5:22 am
Hi Gaby,
Maybe you can have a look at U-CARE manual to understand the test2.CL.
From the manual, there are 2 possibles hypotheses tested with Test2.CL:
- H1: there is a difference in the probability of being reencountered between animals encountered and not encountered at the previous occasion => is there some trap-dependence in the dataset. It is based on the chi-square statistics.
- H1T: among individuals alive at 2 successives occasions, those encountered on the first occasion tend to be either less or more reencountered at the second occasion => is there always trap-happiness or always trap-shyness. Based on z statistic.
Thus, you can find either "directional" trap-dependence in your dataset (always trap-shyness or trap-happiness), or just trap-dependence but sometimes trap-shyness and sometimes trap-happiness.
Maybe this is the latter case in your dataset. To have more insight in your data, select the option "full details with contingency table" to have a look at the 2x2 Table.
Cheers,
Guillaume