With or without a Control Group?

Hello, I will do a research with K-12 students (my own students), and it includes a treatment which will last around 3 months. We will see how and whether it will affect their motivation. That's...

08 February 2021 632 4 View

Can I add a neutral option in a 4-point Likert scale?

Hello, I want to use a motivation scale with my students (secondary school) for my research, but the scale is in a 4-point Likert style with no neutral option (Certainly true - True - Not True -...

04 February 2021 4,757 13 View

What if there is no population to pilot an adapted questionnaire? What about its reliability and validity?

Hello, I'm new to this platform, and this is my first ever post in here. So, please excuse me in advance if I happen to cause any inconvenience. Coming back the question; I have just adapted a...

26 January 2021 9,030 4 View

Is there any minimum number for study to perform publication bias tests?

Whether funnel plot or egger test, is there any minimum number for study to perform publication bias tests?

26 January 2021 5,741 3 View

For continuous variables, in which threshold value we should perform rating up the quality of evidence in Grade analysis?

If the mean difference was used to measure the effect estimates in comparisons, in which threshold value we should perform rating up the quality of evidence in Grade analysis. In terms of Risk...

26 January 2021 5,513 3 View

In which situations, standardized mean differences should be preferred instead of mean differences in the meta-analyses?

I know that SMD is preferred when the variables have different measurement units, but I am not sure. In which situations, standardized mean differences should be preferred instead of mean...

10 January 2021 1,134 3 View

Should I transform the median (IQR) to mean (SD) to include in the meta-analysis?

Some papers prefer to use median (IQR) instead of Mean (SD). Should I transform the median (IQR) to mean (SD) to include in the meta-analysis? Although some method is available in the literature,...

10 January 2021 6,823 5 View

How can I convert 2D mesh to 3D mesh via extended existence 2D mesh just one cell in Z direction?

Hello All, I have 2D mesh defined in x and y directions. Now I would like to extend just once cell in Z direction so that it is 3D Mesh due to requirement of 3D mesh for turbulence model and type...

28 November 2020 7,946 5 View

In cases where variances are not homogeneous in parametric tests, does ANOVA test get a criticism?

Dear researchers; I know that one of the prerequisites of parametric tests is that variances must show homogeneity. However, if the variances of my data are not homogeneous, the tests to be used...

13 June 2020 4,223 6 View

It is possible bulk density decrease with depth ?

Hi, It is possible bulk density decrease with depth ? (0-15 and 15-30 cm)

09 June 2020 4,951 15 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View