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

How to determine a priori sample size for t-test with unequal means?

I need to conduct a a priori sample size determinations for t-test with unequal means, but I don't know the sizes of the groups nor the ratio of both groups... Can I do a sample size determination...

24 February 2021 8,289 3 View

How to perform Cox proportional hazard analysis or Kaplan-meier survival analysis in SPSS?

At first please see the attachment. This experiment was performed for a period of 7 days (n=100). After 7 days, we found different level of survival rate (%) for each treatment. Now, I want to...

15 February 2021 9,145 2 View

Anybody expert in Augmented Reality?

i want to make research related to augmented reality for language learning in my classroom. so I need to learn to make simple AR for my class. i need expert to sharing experience about AR.

03 November 2020 9,241 5 View

How can I fix the package installation error in R version 3.6.2?

In the case of package installation, I am facing an error in R version 3.6.2 . How can I fix this problem? I have attached screenshot of R console showing error during package installation....

06 April 2020 307 3 View

Can we call or rename Artificial Intelligence (AI) Algorithm as an Alternative Intelligence Algorithm ?

Most of the AI Algorithms are based on the the living things behavior including humans, animals, and insects related with day to day activities. Some of the recently developed AI algorithms...

25 May 2019 6,300 13 View

How can I progress from proof-of-concept stage to prototype stage? Especially for the development of solid state device?

Hi All, So a little introduction, our group is making solid state devices (MRAM etc) but so far we have only work on proof of concept stage. So how can we bring it to the next stage? how can i...

27 March 2019 5,607 1 View

Why am I have such awful western blot bands on the 70 kDa?

I have made WB using standard protocol. My protein of interest is 72 kDa. On the PONCEAU are some strange little aggregates on that weight. What may be the cause? My loading control (GAPDH) is not...

05 December 2018 1,907 2 View

What is the richardson constant value for indium oxide?

07 April 2017 7,355 5 View

Please, any idea about the difference of bulk and nanoparticle?

25 February 2016 7,912 5 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

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 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

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View