How is the interaction effect calculated to test a moderation?

More Araceli Rojo's questions See All

Do you know any article that performs the exploratory factor analysis (EFA) factor by factor and not jointly?

It is welcome any study from any field, as much as possible :) Thank in you in advance

05 April 2023 486 4 View

How can I increase the plasmid integration into bacterial chromosome?

I try to make a knockout bacteria, but the plasmid integration is low frequency.

06 March 2023 644 9 View

How can I calculate the effect size in a multilevel model in STATA?

The dependent variables are continuous and categorical. Thank you in advance.

15 January 2023 5,044 2 View

Examples of or tips for using GPS avian tags on small (~40-80 g) rats?

Hi, my target rats are too small for collars and I need the fine scale data of a GPS tracker. I'm considering using bird tags (e.g. PinPoint GPS VHF for birds-Lotek). Have you heard of light...

08 January 2023 3,264 0 View

This one is for my Ion Chromatography experts. Why would orthophosphate show up on my ICV QC but not on my MDL?

We never had an issue with our MDLs not showing up until recently and I don't know why. Maybe the column is shot? Also the baseline seems to be lifting towards the end of sulfate and have no idea...

15 August 2022 9,926 2 View

How to incorporate the abuse reaction equations due to thermal runaway in Li-ion battery using COMSOL?

Hello RG community, I am trying to model the thermal abuse behavior of Li-ion cylindrical cell using COMSOL 5.6. Two models are coupled, i.e. 1D electrochemical model (to evaluate the heat...

27 July 2022 6,423 0 View

Any experts on ion chromatography?

Specifically someone who works with 930 Compact IC Flex. My eluent ran dry, changed the suppressor and columns. Everything looks okay except for my blanks. My QC passes and has no type of noise...

06 December 2021 9,301 4 View

Could you share information about RT-LAMP to identify ToBRFV?

Dear Dr. Tahzima: I am a PhD student and I am interested in the rt-lamp methodology for the identification of ToBRFV, is it possible to identify the ToBRFV virus from the rest of the tobamovirus...

13 January 2020 2,978 0 View

How add references?

I've uploaded my poster, and now I want to know how to upload the references. Thank you

14 October 2019 3,933 7 View

Does sputtering with oxygen, like reactive gas, cause magnetron oxidation?

I want to grow thin films of TiO2 by means of reactive sputtering, the target is of titanium and the gas is a mixture of argon: oxygen. I have the concern that the magnetron may be damaged by...

08 January 2019 7,146 2 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

Miguel Núñez-Merino

Araceli Rojo, to centralize a variable "x", you need to calculate the mean and standard deviation (sd) of this variable. The next step is:

(x(i) - mean(x)) / sd(x)

Araceli Rojo

Thank you so much Miguel :)

This is true when the moderation is calculated for two continuous quantitative variables

Miguel, so how should it be calculated when one variable is continuous and the other ordinal?