Can I do a T-test between males and females for a single likert item?

01 February 2016 800 11 View

How can I fit a Hierarchical regression with 2 categorical and multiple scale variables in SPSS?

How can I fit a Hierarchical regression with 2 categorical and multiple scale variables in SPSS?

01 February 2015 9,649 3 View

How can I measure heterogeneous variables along a road segment?

I am not sure how to design the sampling plan. It is time consuming to measure the variable along the entire road (200 km. Aprox). How many samples are statistically representative? Should I think...

11 December 2014 2,654 14 View

How to represent human-machine systems?

I need to draw the interaction and different modes of driving with GPS

04 May 2014 3,577 2 View

Does anyone know the best way to report several logistic regressions (different responses, same independent variables) in a journal article?

Some examples? Recommendations?

02 March 2014 8,380 5 View

What should be considered as an indicator of the editorial process speed in scientific journals?

I usually consider the number of issues per year. But I want to know other strategies you usually do to estimate the editorial speed? Any idea where can I consult this?

02 March 2014 769 6 View

What do you think about to ask other researchers to review my working papers in order to receive prior feedback?

I think that platforms like Open Review could help with this. It is true that this could help to improve my work in order to get high impact publications, but I want to hear the implications.

02 March 2014 2,251 1 View

Is the affiliation of an author related with his/her actual position or the place where he/she made the research?

I am interested in know, what is the correct practice when you change your position and have some unpublished research results (without any specific funding). Is it appropriate to use both...

02 March 2014 6,092 11 View

Does anyone know the best way to report several logistic regressions (different responses, same independent variables) in a journal article?

Some examples? Recommendations?

28 February 2014 7,434 4 View

I have one binomial variable associated to two (or more) groups. Which is the best test for identifying proportion differences?

Any online tools?

10 November 2013 5,444 6 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 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

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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

No title

02 March 2021 3,060 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View