Amy Griffiths

5 Questions 3 Answers 0 Followers

Questions related from Amy Griffiths

How to conduct a meta analysis in R using mean values ?

I am struggling with where to start with the data. I have extracted the data from each study which includes mean mercury concentration, sample size, species, SD( however not all studies gave it)...

08 December 2024 8,737 1 View

How to conduct a meta analysis comparing PCB concentration in different cetacean species in R ?

I was told to use metamean function in R which I'm not familiar with to work out the mean values of PCB concentration in cetaceans . I would like to compare across species and sex . However some...

25 March 2024 4,632 2 View

Is there a way to combine data on a species across different studies to get a mean value for in my case PCB concentration?

In some studies authors report concentrations of each individual in a sample but some report the mean from the whole sample. is there a way to combine these to get a mean value across studies for...

21 March 2024 719 0 View

How do I conduct a chi squared test on SPSS for age structure of fish?

I want to see if there is a difference in age structure between male and female fish so I have ages from 0.5 to 8.5 and the number of each sex at that age but I dont know which variables I use in...

13 March 2024 3,806 2 View

I am using PRIMER 7 and want to look at the environmental variable driving benthic infauna communities. Do I use an ANOSIM on the environmental data?

I want to know how to compare sediment type and benthic abundance data.

12 December 2023 10,107 2 View