How to assess scale reliability and validity?

I am conducting a qualitative study which i need to develop a scale, I need to know how to assess the reliability and validity of this scale?

08 September 2017 3,602 6 View

Are there any differences in calculation of Credit hours in undergraduates and postgraduates?

09 October 2016 290 0 View

Is it necessary to teach bioinformatics for undergraduate medical students?

06 July 2016 3,590 3 View

Are scientist biased to their race or nations?

Are scientist thinking could be based on their race when write a scientific article, cite their race result and papers rather than others result, hide some result that may insult their race and...

10 November 2015 9,749 5 View

Is there any software that can predict the effect of the SNPs in the 3D of the protein?

09 October 2015 8,840 8 View

I would like to identify the hub protein in a specific signaling pathway, so how can i determine the hub protein?

I try to select the hub protein in a specific signaling pathway, in order to study the SNPs of this protein genes. So any one can help in determining the Hub Protein in any pathway?

09 October 2015 4,803 3 View

How can i know the genetic biological network interactions for a particular disease?

08 September 2015 3,245 0 View

Are there any way to determine the exact cause of genotyping deviation from Hardy Weinberg equilibrium (HWE)?

It is well known that, there are many causes of deviation of the genotyping from the HWE. However, i wounder are there any way to know excatly the cause of this deviation from HWE.

08 September 2015 6,029 14 View

Any one can help in how to make standerdized psychometric test ?

08 September 2015 2,172 5 View

How can i quantifi an enzyme which expressed in tissues not in blood cells?

I try to measure the enzyme concentration for the NO3 which is an endothelial enzyme expressed mainly in the endothelial tissues, some literature report measuring from blood samples, but is it a...

08 September 2015 5,031 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

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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 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

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 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