What is the best statistical method to analyze temperature effect on insect biodynamic?

03 April 2017 140 4 View

How to deal with non normal data?

31 December 2016 3,441 15 View

Would Anova be helpful to study variation in temperatures in many years?

When we have temperatures in decades (ten days) for example for 5 years, could Anova be adequate to compare sums of tempreatures to know whether there is difference between these sums over the...

05 June 2016 9,263 5 View

What's the best time to collect plant parts for extraction?

01 February 2016 8,773 7 View

How can I set up yellow water traps?

How are yellow water traps distributed in orchards or fields to capture insects : randomly or following a specific method to obtain good results?

31 December 2015 6,883 7 View

What are different methods of plant aqueous extraction?

I want to prepare aqueous extraction from plants and I need to know how to do it. Thank you for your contribution

04 May 2015 9,456 0 View

Is petroleum ether good for terpenes extraction?

01 February 2015 4,940 6 View

How to prepare and dry aqueous extraction?

In toxicity tests against insects and also molecules identification, I would like to know how to prepare aqueous extraction and analyze obtained extracts without altering chemical composition of...

01 January 1970 6,242 5 View

How to choose concentrations in a bioassay?

01 January 1970 9,905 0 View

What about NPs extraction?

Which technique you will use to extract these NPs without degrading them with high temperature?

01 January 1970 2,867 3 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

How to manually calculate p value in ANOVA? what is the equation or formula for it?

How to manually calculate p value in ANOVA? what is the equation or formula for it?

03 March 2021 4,928 5 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Mixed ANOVA - help?

I'm currently working on a piece which asks to conduct an ANOVA - looking at the effect of sporting group (2 levels), and exercise trials (two trials with six levels). I've computed this all...

27 February 2021 9,626 4 View

Statistics: include groups of respondents made by one person for analysis?

Good morning, I could not find literature about this so I am asking. I am organizing data for a questionnaire (N=100) that foresees some personal questions like level of education. For the aim...

25 February 2021 2,090 4 View

How to Interpret Partial Eta Squared Numbers For a Repeated Measures Anova?

I have obtained Partial Eta Squared Numbers through Two-Way Mixed Anova Analysis. My results for different constructs are: .105, .135, .038, .068, .061 respectively. I wanted to know, whether...

24 February 2021 7,122 1 View

Can we proceed to perform Two-way Mixed-ANOVA despite normality violations?

While testing assumptions, Shapiro-Wilk Test failed. However, I proceeded with the analysis and the interaction effect was significant. During our course- lectures, it was mentioned that Anova...

24 February 2021 228 3 View

Sample size determination for non-parametric tests?

How do I run a a priori sample size determination for non-parametric tests, like the Mann-Whitney U-test and the Kruskall-Wallis or other non-parametric tests that accord with the unpaired t-test...

24 February 2021 166 6 View

Three-way robust ANOVA in R?

I am trying to conduct a three-way robust ANOVA in R using the WRS2 package as: t3way(Stem ~ Species*Temperature*Salinity, data = tutto) and there is an error saying : Error in if...

22 February 2021 1,674 8 View