How to compute the internal consistency of a scale with ordinal items?

Hi community, I am trying to determine what is the best way to calculate the internal consistency of a newly developed self-esteem scale. I am working together with two other researchers on the...

28 February 2021 1,369 5 View

Calculating volume of DNA required from DNA concentration?

Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...

26 February 2021 5,029 2 View

What is th needed sample size for a one-factor convergent validity check?

Hi all, I recently posted a question about how to conduct a convergent validity analysis for a self-developed self-esteem scale. I got some very useful responses! However, something I am stuck...

01 December 2020 4,370 6 View

Example of calculating network modularity?

I would appreciate if some share the step by step calculation of a simple network's modularity. I used Gephi, and know what algorithm it applies, but I struggle to calculate it manually. This...

07 July 2020 3,012 1 View

Is there a method or developed technique for soil winnowing?

The light fraction (undecomposed organic matter) needs to be removed from prepared soils (

02 June 2020 921 5 View

Is there other related study about the impact on COVID-19 on Kindergarten Academic activities?

Kindergarten learners with internet connectivity at home are also encouraged to access enrichment activities. How mdifficult the new normal is, if connection is not possible, worst if there is no...

10 May 2020 10,019 3 View

How many mice are needed for long term potentiation?

As above, we are trying to do the Long-term potentiation test using mice hippocampal slices. How many mice are needed or how many slices are needed for LTP? Can anyone help me with that?

15 February 2020 7,073 3 View

My next study will be in a child autism class course what are some of the basic questions I will see on text and test papers?

Reason I ask is because I can find people that may be interested in the subject I have submitted my self to a fund raiser for autism on the Facebook network. any people interested in donating to...

27 December 2018 5,917 1 View

Gaussian optimization terminating without error message?

Hey, I have been trying to optimize the structure of what I guess I would call a lignin derivative. The system contains 63 atoms and has no charge. I have tried using DFT and HF using a 6-31g(d)...

06 November 2018 2,781 3 View

Model 8 Hayes' PROCESS Macro SPSS Output 2?

Hi, I would welcome some advise regarding the importance of the value of the coefficient in Hayes PROCESS Macro SPSS. In output 2, of the model, the mediator effect looks significant i.e.: (B =...

07 July 2018 8,116 2 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View