Is there any available dataset that has COVID-19 symptoms values ?

I need a dataset which has real values of COVID-19 patients symptoms such as cough and temperature? I have found some datasets online but it contains only 0 or 1 for the symptoms values? Anyone...

29 January 2021 2,232 3 View

Dynamics of cochlea membrane ?

04 November 2020 3,333 1 View

Which statistical test can I use to test whether two standardized regression coefficients differ significantly?

Hello, I have conducted a multiple regression with two predictor variables and would like to find out whether the difference between the standardized regression coefficients is significant....

22 June 2020 8,788 11 View

Class imbalanced dataset for Machine Learning - how to test it?

I have a data-set with good and malicious files. Labelled as 0 and 1. In the data-set there are mor malicious files - like 3000 vs 800 good files. Nevertheless I am getting good results with...

27 April 2020 3,752 14 View

How to design a dataset of files and their "issues" for machine learning classification?

I have a few thousand files and each file has multiple "issues" after being deconstructed. They are labelled 0 or 1 for good or malicious. I think these "issues" can be a feature to determine if...

02 April 2020 2,941 2 View

Factorial Survey Experiment Analysis?

2x2x2 Design

26 November 2019 4,808 3 View

I run GSSHA model in WMS software but the result was not reasonable what is the problem?

i do it with 32 mm precipitation

05 August 2019 8,187 2 View

What is the best formulation to disperse a commercialized graphene in DMF?

I want to prepare a conductive ink. But i couldn't find any journal that provides a formulation for dispersing commercialized graphene in DMF. I want to know what formulation can give a homogenous...

20 March 2019 5,757 7 View

Has anyone experiences with drying plant parts (leaves, stems, roots, ears, kernels), especially of wheat plants in domestic microwave ovens?

Dear all, we need a procedure to rapid drying plant materials from field or greenhouse experiments to rapidly denaturing enzymes, kills micro-organism and stabilizes the tissues. On one hand we...

31 October 2018 5,942 9 View

No title

At the moment we hear a lot about artificial intelligence and machine learning. It is an awesome development, unimaginable completely or partially, now. How and when humans will gain the benefits...

19 September 2018 801 25 View

Mediation path analysis - Can I run two seperate models?

I am wanting to run a serial mediation model with 2 x IVs, 2 x MVs, and 3 DPs (all continuous). Is it problematic to run 2 different models for each IV, keeping the MVs and DPs the same in each...

27 February 2021 5,681 3 View

Can I run spearman's correlation on non monotonic data? Is it advisable?

Hi all, I am running a partial correlation analysis on mood data. I want to see if there is a correlation between scores on a novel hypomanic mood scale and existing measures of hypomania - the...

25 February 2021 1,619 3 View

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View

Is there a suitable way to confine cell attachment area inside a multi-well plate?

Are there any types of cylindrical cell culture inserts that are designed to confine cell seeding area? Say, if I'm using a 12 well plate (3.5 cm^2/well), but only want to seed cells in the middle...

22 February 2021 7,127 4 View

Interpretation of Goodman - Kruskal Gamma squared?

Dear colleages, Eta squared is dominantly used in reflecting the explaining power the same manner as a squared partial correlation coefficient (R2p ) from multiple linear regression: as the...

22 February 2021 7,801 3 View

How can a reference point be fixed to an attachment point in Abaqus?

I am currently trying to copy an assembly feature, that is present in an old version of the model I am using, onto a new model. The feature is a reference point that is fixed to an attachment...

16 February 2021 8,872 2 View

How do I group questions of SPSS under one variable for Spearman's r?

12 February 2021 5,379 5 View

What effect size should i use for a meta-analysis when study data violate normality assumptions?

I'm looking for advice regarding what effect size to use for meta-analysis. Our question is whether the number of individuals in a group affects the per-capita productivity of that group. Does...

10 February 2021 5,510 8 View

How to determine the significance of "diagonal" contrasts in two-way ANOVA interactions on SPSS?

Hi all, I'm running a 2 x 2 between-subjects ANOVA with the setup in the attached image (kindly refer to JPG attachment). I understand that calculating simple effects involves determining...

09 February 2021 547 3 View