Hey y'all,
So after running all of my models I generated numerous models within 2 delta qAIC including the null model. However, after calculating the 95% confidence intervals for each model, none are significant as they all cross 0 as seen below. What could be the cause of this? Am I missing a variable that needs added in or does this just mean that no variables are significant?
Parameter β SE LCL UCL
ψ(.)ρ(.)
ψ 0.423539 0.295274 -0.15519804 1.00227604
ψ.Control 1.428572 0.21086 1.0152864 1.8418576
ψ(Aquatic)ρ(.)
ψ 0.43857 0.307246 -0.16363216 1.04077216
ψ.Emergent -0.573449 0.312854 -1.18664284 0.03974484
*ρ 1.428593 0.210853 1.01532112 1.84186488
ψ(Waterway)ρ(.)
ψ 0.917236 0.418589 0.09680156 1.73767044
ψ.Stagnant -1.117416 0.61425 -2.321346 0.086514
*ρ 1.428572 0.21086 1.0152864 1.8418576
As well, I had this problem with another model set. The difference is, the estimates and standard errors are high, causing extremely wide confidence intervals. Only the models above the null model have this problem. I checked over the data and renormalized a lot of it, but I still get the same results for every year I run models with this species.
Any insight would be much appreciated.
Parameter β SE LCL UCL
ψ(Waterway+Herbaceous)ρ(.)
ψ 4.697274 5.860632 -6.789565 16.184113
ψ.Stagnant -6.008358 5.857509 -17.489076 5.472360
ψ.Herbaceous 2.381525 1.364845 -0.293571 5.056621
*ρ -1.235572 0.240584 -1.707117 -0.764027
ψ(Waterway)ρ(.)
ψ 2.625552 2.826669 -2.914719 8.165823
ψ.Stagnant -4.082469 2.791899 -9.554591 1.389653
*ρ -1.205787 0.309348 -1.812109 -0.599465
ψ(Stream Density)ρ(.)
ψ 4.576777 5.018415 -5.259316 14.412870
ψ.Stream 7.258050 6.188546 -4.871500 19.387600
*ρ -1.362518 0.285677 -1.922445 -0.802591