Can a two arm randomized controlled trial have a sample size of 14 (7 per arm)?

According to my sample size estimation, the sample size comes to be 14. Would results from a trial with such a little number of subjects be valid? On the other hand I cannot increase the sample...

10 November 2019 9,270 3 View

Which test can be used to compute the effect of two groups of independent variables on dependent variable?

For example, dependent variable is depth of tissue penetration Independent variable group 1 is drug 1, 2, 3 independent variable group 2 is route of administration eg, oral, iv, im

02 March 2018 7,782 3 View

Which are the best statistics to determine convergent and discriminant construct validity?

I am comparing against a previously validated questionnaire which is similar i some respects.

07 August 2017 7,145 4 View

How can satoguna be increased in individuals for improving psychological health?

Charaka Samhita which is the oldest texts of Ayurveda explain triguna concept of human psychology that consists of Stoguna, Rajoguna and Tamoguna. Even though we have psychometrically tested...

09 October 2015 1,044 12 View

Which poetry from your nation has inspired revolutions?

Please share any inspiring poetry from your nation that has inspired a positive social change. I will appreciate if you can provide the vernacular version as well as English translation if the...

07 August 2015 7,325 18 View

Any articles on role of health coaching in dentistry and oral health promotion?

Are there any studies or research papers on health coaching in dental / oral health care setting. Kindly share.

06 July 2015 1,575 5 View

Should we as teachers try to change our students or should we change ourselves?

Values, attitude and thinking of students has changed a lot since we were students. Are their ways as correct as ours were, or are they wrong? Should we mould ourselves or should we try to change...

06 July 2015 9,746 43 View

What are very brief interventions for health related behaviour modification?

Are there any guidelines about which are the best techniques for such interventions?

04 May 2015 5,727 0 View

How will the study of epidemiology, biostats and research methodology help students in their clinical practice?

I feel I have been unable to give my students a satisfactory answer....maybe even I am in search of one!

02 March 2015 4,344 1 View

Is a questionnaire with four different choices for every question which are scored on a numerical scale of 0,1,2,3 considered on a likert scale ?

The choices for all the questions are different, but they measure determinants of the same theoretical construct. I am measuring these choices on a scale of 0,1,2,3 throughout. What kind of scale...

02 March 2015 8,053 24 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

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View