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

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

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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

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21 July 2018 2,931 3 View

For NGS, can I use samples prepared with differerent number of cycles of PCR?

I am preparing samples for NGS, RNA sequencing. I isolate total RNA from B. subtilis, deplete it from rRNA and then make DNA libraries. Every step is quality-checked using BioAnalyser. And in the...

08 April 2018 7,871 6 View

Detaching cells from Lab-Teks. Do you have any suggestions?

Does anybody have any experience with cells detaching from Lab-Teks and how to deal with it? In one of our experiments we are not able to use gelatin or anything else. In other experiment we are...

13 September 2017 4,777 1 View

Bax protein isolation

19 June 2017 5,329 3 View

We are looking for a validated instrument that measures fear expectancy in children (8-13 years old). Can anyone advise us?

We (group of researchers and students) want to measure a baseline of anxiety expectancy in children (8-13 years old), and their level of anxiety expectancy after treatment. We're looking for a...

01 January 2017 8,519 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 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

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View