I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

How to minimise the risk of being abused the profile of potential participants tagged in a social media post?

Dear colleagues, I got this one in one project I did ethics review. It's great to hear about your thoughts/experiences. "Doing an open recruitment online (i.e., via Facebook) requires public...

22 February 2021 3,322 3 View

Any suggestion on self-efficacy scale ?

Dear researchers, I am planning on conducting a research on the relationship between Language learning strategies, by Oxford (1990) and self-efficacy. I have found Morgan-Jinks Student Efficacy...

22 January 2021 8,432 3 View

I need to apply a questionnaire from an article. What statistical analysis do I need to use?

Hello, I found a survey about attitude toward language in an article which I find fit to use it in my thesis. The survey has 30 questions, which were put into 5 factors through factor analysis...

21 January 2021 9,419 3 View

Why did I obtain abnormal staining by TUNEL assay?

I use Abcam TUNEL Assay Kit - HRP-DAB (ab206386) on mouse tissues. The staining showed a pattern that I expected to see with a specific layer of cells dying due to drug treatment. But the...

12 January 2021 144 1 View

Is there a generalized method to derive current-mode model of any DC-DC converters?

Hi all, As new DC-DC converters are being proposed, associated control method should be proposed and based on the small-model signal analysis of the DC-DC converters. Using average space state...

06 January 2021 7,247 3 View

Is it need to test Cronbach's Alpha for extracted features from data?

As Cronbach's Alpha is usually used for test the reliability of measurements given by questionnaires, however, I wonder that whether I use this test for features extracted from behavioral data. I...

26 December 2020 9,602 2 View

How is datasets good?

Can you show me some ways to generate benchmark datasets?

22 December 2020 362 4 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 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

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

The procedure compute?

02 March 2021 5,204 3 View