Is there a mathematical proof showing how random assigment guarantees the same probability for the individual to be selected?

Considere a completely randomized design, where every unit is randomly assigned to a treatment group. Let's say we have 30 observations and 3 treatment groups. When we choose one observation at...

09 October 2018 5,011 17 View

No title

03 April 2018 3,123 2 View

Is anyone familiarized with the use of the "Delta method" in the calculation of the SE's of the long run coefficient after estimating an ARDL model?

After estimating an ARDL model in eviews, you can ask for the long run coefficients by clicking view > coefficients diagnostic > long run form and bound test. My question is: how standard...

01 February 2018 9,644 2 View

Why eigenvectors seem incorrect in python?

01 February 2018 5,615 4 View

Should we considere Structural Breaks when testing for granger non causality following Toda - Yamamoto procedure?

Dear Sir or Madam: Should we considere Structural Breaks when testing for granger non causality following Toda - Yamamoto procedure? I mean should i considere breaks in the slope or intercept or...

07 August 2017 1,308 0 View

Should I considere structural breaks in an ARDL model?

Dear Sir or Madam, Is it correct to considerer structural break in the data by adding a Dummy2000 (which adquire values of 1 since the year 2000) and an interaction term, Dummy2000*X1. Y =...

31 December 2016 10,021 7 View

Should I fix Multicollinearity or should I leave it?

I would like to read your opinions about the next issue: the model (ARDL) is CO2 emissions (lco2pc) as a function of oil prices (lop) and GDP per capita (lgdppc). All variables in log form.Oil...

11 December 2016 7,545 10 View

Would you prefer Traditinal Granger causality or Toda yamamoto procedure to test for granger causality?

My model is Y(X1,X2), where Y=CO2 emissions, X1 = gdp per capita, X2 = oil prices. When i tested using traditional Granger causality, X1 and X2 do granger cause Y. When i tested for granger...

11 December 2016 1,726 2 View

Is my model still stable?

Dear sir or madam: I was wondering if these results show that my ardl model is stable. I mean if we see the cusum square graph the blue is outside the band and then comeback within the...

10 November 2016 2,571 6 View

What do you do when unit root testing?

Hello! After reading several websites, i still can't be 100% sure when chosing between none, Intercept only, Trend only and both (trend and inercept) for unit root testing. So, i will really...

09 October 2016 3,395 9 View

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 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 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

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 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

OpenBCI eeg--has anyone used them?

I'm looking to try out an off-the-shelf EEG set for some exploratory work. Curious if anyone has used the OpenBCI, and how much set-up work is required. I've heard they are more difficult to get...

01 March 2021 4,128 3 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View