How to control variables in multiple regression analysis?

I want to find what is the impact of race on poverty controlling for income, unemployment, and gender. Do I have to apply hierarchical regression analysis?

01 February 2014 6,927 10 View

Low R-squared values in multiple regression analysis?

In my regression analysis I found R-squared values from 2% to 15%. Can I include such low R-squared values in my research paper? Or R-squared values always have to be 70% or more. If anyone can...

01 February 2014 5,807 71 View

Why does SPSS exclude certain variables from a regression?

I am running a regression analysis to predict poverty from environmental variables for 5 states. I am using state as dummy variables. However SPSS automatically exclude one state from the...

01 February 2014 4,710 15 View

How to turn a dissertation into a book?

I want to publish my dissertation as a book. Can I send the total dissertation as a manuscript or do I have to edit it before sending it. Any comments or reference would be appreciated.

11 December 2013 6,223 44 View

If 'correlation doesn't imply causation', then if I find a statistically significant correlation, how can I prove the causality?

In regression and correlation analysis we often find find statistically significant relationship between two variables. Before starting the research we also find the possible relation between the...

11 December 2013 9,379 92 View

How to check impact factor of a journal?

Before submitting my article I want to check the impact factor of a journal. It will be highly appreciated if anyone can tell me the process.

11 December 2013 7,311 15 View

Can anyone give me some general guidelines about successful dissertation defense?

I am going to defend my dissertation soon. Very short time for preparation. It would be great if anyone can give me some ideas about how to successfully defend dissertation.

10 November 2013 6,345 8 View

Where can I find the definition of the variables of the US Census Bureau?

I'm searching for the definition of some economic variables of the US Census Bureau.

09 October 2013 1,522 1 View

How can I find the impact factor and rank of a journal?

Before sending article I want to know about the impact factor of journals.

01 February 2013 4,525 29 View

How to reference a book in the APA style which is published from multiple cities?

Some books are published from London, New York, Amsterdam, New Delhi. When I cite in the APA style, do I have to mention all the cities from where it was published?

01 February 2013 3,286 4 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View