How to Interpret ANOVA's results ?

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Sililated organic extract GC-MS, Kovats index or Van den Dool and Kratz index ??

dear colleagues, I'm doing a GC-MS analysis of presilylated extracts with BSTFA (essentially polyphenols) and i want to determinate an Index to compare with adams book (2007), which index should I...

09 October 2019 4,144 2 View

Which reagent is better for lipids HPTLC revelation ?

Dear colleagues, I'm doing an HPTLC of several plant oils to compare their lipidic profiles, i have two protocoles the first one with sulfuric-vanillic acid, the second with phosphomolibdic acid....

08 September 2019 4,748 5 View

ABTS radical scavenging protocole modification ?

dear collegues, i would like to study the radical scavenging effect of some plant extracts against ABTS, and i would like to know if i can change the sodium persulfate with sodium sulfate and the...

06 July 2019 3,518 4 View

How can I interpret the GC-MS results obtained after sililation of an extract???

Dear collegues. I have analysed some extracts by GC-MS after sililation and i have obtained my report after comparing the results with the NIST database, Before doing more bibliographic...

02 March 2019 4,192 4 View

ABTS or DPPH: Which antioxydant assay is the best for an bioautography test on TLC?

Dear collegues, I'm doing an HP-TLC of some extracts and would like to do an antioxydant screening on plate (DPPH-TLC or ABTS-TLC) I would like to know wich one is the best and why ??

31 December 2018 9,829 4 View

Can the fluoresent colors of compounds on a TLC under 366nm be inerpreted ? if yes which compound correspond to which color ?

i'm doing TLCs and visualising my plates under 254nm & 366nm, I would like to know if it's possible to correlate the fluoresent colorations i obtain with families of secondary metabolites.

09 October 2018 8,121 6 View

Comparison between the Hydrodistillation & SFE extracted essential oils

dear colleagues. I would like to know what is the difference between SFE and hydrodistillation extracted essential oils, i have heard that SFE EO cannot be defined as essential oils according to...

01 January 1970 2,544 3 View

Payed publications VS open acess ? do you think we will still have payed publications after 20 years ?

After the use of paper hack tools such as sci-hub the majority of journals prefer the open-access format where the authors pay the publication to be shared. Do you think we ll still have pay to...

01 January 1970 9,435 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?

03 March 2021 4,928 5 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Is stone a sustainable material? Is it a sustainable approach to use natural stone waste in architecture?

I'm designing a zero-waste restaurant and considering using marble waste to make some tables and a bar countertop. My clients think it's not "sustainable enough" and I would like to have more...

01 March 2021 4,326 7 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 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

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

Abolfazl Ghoodjani

Those very simple questions.

Search a little.

This is one of the basic statistics topics.

Finding yourself is better than asking others.

Noha A. Mostafa

Please check the following:

https://statistics.laerd.com/spss-tutorials/two-way-anova-using-spss-statistics-2.php

https://psychstat3.missouristate.edu/Documents/MultiBook3/Mlt08.htm