Recent content by R.tylor

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    Alternative to 2 way anova

    We are simply trying to see if there is an increase in heart rate, with our hypothesis being that there will be, probably in a dose dependent manner. It is with a university and since this is exploratory and not for publication we don’t usually have an a priori plan as we can judge this without...
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    Alternative to 2 way anova

    Hi, I have two groups (control and drug) with 9 rats each, with heart rate measured. The drug (and control solution) were given as 30 minute constant rate IV infusions in an escalation design ... 1 mg/kg, 2, 3, and 4 mg/kg with heart rate data collection at the end of each 30 minute infusion...
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    What test to use?

    Maybe I can take the baseline subtracted values for both groups and run two way rm anova (time and treatment) to compare the two groups at each timepoint...would that make sense?
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    What test to use?

    Baseline was a little different, but expected due to inherent variability of the murine model
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    What test to use?

    Yes 2 groups randomized by body weight
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    What test to use?

    Hi, I have 2 groups with n=6 each with respiratory rate taken at baseline (predose), 1, 2, 3, and 4 hour postdose. I have figures with baseline subtracted means and SD at each timepoint and need to know whether there is a difference between groups. Can it be as simple as running multiple t...
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    ANOVA question

    If I have 20 male subjects, all given the same treatment and measured at predose, 1, 2, and 3 days postdose....is it acceptable to treat these all as different groups? ie. perform an anova using the different timepoints as different groups? (All assumptions being made). Also to conduct post...
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    Comparing one group over 4 timepoints?

    Figure attached
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    Comparing one group over 4 timepoints?

    So would it be best to do multiple t tests and correct for false discovery rate? Or wilcoxin?
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    Should I use Chi squares?

    Data was compiled based on demographics and medical records that assured the samples were comparable. Same time in the disease state so no lead time bias. We don’t know the time of death, just whether they survived or not and want to know if the extra time it takes to run the older tests has...
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    Should I use Chi squares?

    Correction: there was 100 for the older method and 176 for the newer. 16 survived in the older methods and 34 survived in the newer.
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    Should I use Chi squares?

    I want to see how old pancreatic cancer detection methods (slow and invasive) and newer (faster less invasive) have an effect on survival. I simply have data for the number of people that survived from pancreatic cancer in 100 people from each method. Needs to be simple analysis.
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    Comparing one group over 4 timepoints?

    What test and posttest would be most appropriate for a sample size of 10 assuming equal variances and normal distribution at a baseline and 3 timepoints? I need to compare each timepoint against the baseline. The parameter is body temperature.
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    T tests?

    Hi. I have 1 group of 10 people with blood pressure taken at a baseline and at 2 timepoints after given a drug. I need to compare each timepoint against a baseline. Should I use RM anova or multiple t tests?
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    Simple anova?

    Increase. I actually cut it down to every hour for 5 hours.