I need to find the effect of treatments on mortality rate of insects. My dependent variable is mortality rate and my independent variable is treatments. Each treatment was replicated 4 times. The exposure times of the treatments are different, but, within a treatment, the exposure times are the same. When I conducted one-way ANOVA without considering the time effect, I see treatments have a significant effect on the survival. However, the exposure time also affect the dependent variable mortality. I tried separating the effect of time using multiple logistic regression and ANOVA. However, I think the program identifies time and treatment both as a single variable. Please see the attached data sheet. Any advise on this would be much appreciated. Death rate Treatment Time (days) 0.3 R2 8 0.1 R2 8 0.1 R2 8 0.4 R2 8 0.7 R4 16 0.7 R4 16 0.7 R4 16 0.7 R4 16 0.9 R6 24 0.8 R6 24 0.8 R6 24 0.9 R6 24 ... View more