Global management market of courses & marketing to improve quality in Pt Treatment or science or mainly Bureaucracy?

12 October 2020 9,272 1 View

SEM: What does CFI = 1 & RMSEA = 0 indicate in over-identified models?

I'm suspicious about "perfect fit" in my SEM path analysis, with fit indices of CFI = 1 and RMSEA = 0 which I would expect from an just-identified model. However, since I have 3 degrees of...

08 August 2020 1,492 4 View

Data on most frequently researched KSAOs or personality traits?

I'm looking for meta analyses or reviews, summarizing which knowledge, skills, abilities and other characteristics (KSAOs, especially personality traits) are most frequently researched in...

22 May 2020 332 1 View

AC/DC inverters: Are there any standards or laws regulation DC output on the AC Grid?

Hi, we are working on internal specifications on On-Board Charger for Battery electric vehicles. We have seen some field failures on older generations. We are suspecting that e.g. PV AC/DC...

15 December 2019 6,887 1 View

How to test unidimensionality for polytomous data with IRT-models in R?

I would be thankful if someone could give me a short breakdown on how to test unidimensionality of polytomous data (likert-scale) using IRT-models in R. As it is my understanding that the...

22 November 2019 6,730 7 View

How do you optimize your research design for questionnaires with large item pools?

While developing a questionnaire to measure several personality traits in a somewhat unconventional way, I now seem to be facing a dilemma due to the size of my item pool. The questionnaire...

30 May 2019 2,633 4 View

What factors generally improve inter-rater reliability?

I'm developing a questionnaire to assess observational data in an area of research which is notoriously prone to low inter-rater reliability. Hence, I'm looking for factors in questionnaire design...

03 December 2018 4,006 3 View

Machine learning in economic research?

What is your take on machine learning as an applied method in economic research. is it a game changer or will it not impact your approach to research?

22 July 2018 7,401 5 View

Is there any way to statistically test control samples with parent material?

I want to statistically test the relative gene expression of precision cut liver slices with the gene expression of their parent livers. I have 14 samples from 3 different parent livers that I...

09 March 2018 4,517 4 View

What is the average magnitude of correlations between common personnel selection methods?

Looking for recent (preferably meta-analytic) findings that yielded estimates of the proportion of shared variance among common personnel selection methods such as structured and unstructured...

11 December 2017 1,946 3 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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 is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 3 View