![Dr E Research Videos](/img/default-banner.jpg)
- Видео 72
- Просмотров 186 612
Dr E Research Videos
Добавлен 9 июн 2017
Dr Everson is an associate professor of research methods at Western Kentucky University. She specializes in making statistics understandable to the non-technical audience. Her favorite research methods include Q sorting, propensity score matching, structural equation modeling, and factor analysis.
Gentle R #4: Basic Summary Statistics in R with R Studio
A quick overview of basic summary statistics in R for beginners:
-Mean
-Median
-Standard deviation
-6 Number summary (min, max, 1st and 3rd quartiles, mean, median)
-Mean
-Median
-Standard deviation
-6 Number summary (min, max, 1st and 3rd quartiles, mean, median)
Просмотров: 80
Видео
Beginning Oneway ANOVA Theory
Просмотров 1689 месяцев назад
This video discusses the theory of oneway ANOVA, shows where the numbers in an ANOVA table come from, and shows how to interpret findings. See my other videos for "how tos" in various softwares. Check my store, DrEResearch.com for books on statistics.
Beginners! Simple Linear Regression Theory
Просмотров 1619 месяцев назад
Are you struggling to understand simple linear regression? This video takes you through the basics, including several examples. See my other videos for "how tos" in various softwares. Go to DrEResearch.com for easy to understand stats guides.
Creating a Rubric in AI: A Quick Useful Demo for Teachers and Educators
Просмотров 3610 месяцев назад
#teacher #teachers #teaching #teachingwithai #chatgptinschools
Gentle R #3: T-tests in R
Просмотров 5310 месяцев назад
This video demonstrates creating t-tests in R with and without equal variances, independent samples and paired.
Complete Beginner's Introduction to ChatGPT
Просмотров 7110 месяцев назад
This video is for the newbie to ChatGPT. It also demos Microsoft Bing briefly.
Gentle R #2: Very Easy Intro to Reading Data into R with RStudio
Просмотров 8410 месяцев назад
This video is not intended for programmers. It covers: Reading data into R Installing packages in R Checking your data
Gentle R #1: The Most Easy Beginner Get Started in R & RStudio Guide
Просмотров 40110 месяцев назад
This video is intended for non-programmers who want a very basic introduction to R. It includes: -Downloading and setting up R and RStudio -Arithmetic in R -Script Files in R -Working directories -Introduction to variables, vectors, matrices, and dataframes. More R videos coming soon so be sure to subscribe!
Q Sorting Using Stata qfactor Package
Просмотров 22410 месяцев назад
This is a demonstration of the basic use of Stata to conduct a Q sort analysis for subjectivity.
Using KenQ Online Free for Q Sorting Analysis
Просмотров 1,3 тыс.10 месяцев назад
This video demonstrates the use of KenQ for Q sorting analysis.
Complete Steps to Using Qsortware for Q Sorting Study of Subjectivity Online
Просмотров 24411 месяцев назад
This video shows how to set up a Qsortware account, program Qsortware, distribute the survey, and download final responses. Qsortware allows you to do Q sorts online. It also allows collecting demographic data, short answer responses, and likert-type data. See my other videos for using analysis software and for understanding basic theory.
Which test of means do I use? Independent and Dependent Groups. Assumptions required
Просмотров 54Год назад
Which test of means do I use? Independent and Dependent Groups. Assumptions required
APA 7th Format of Tables Demo Using Excel
Просмотров 6 тыс.Год назад
APA 7th Format of Tables Demo Using Excel
Multiple Linear Regression: Concepts and Requirements
Просмотров 244Год назад
Multiple Linear Regression: Concepts and Requirements
Eigenvalues: What are they? How are they found? How do they relate to factor analysis?
Просмотров 137Год назад
Eigenvalues: What are they? How are they found? How do they relate to factor analysis?
Qualtrics Recoding Variable Names and Value Label Coding
Просмотров 3 тыс.Год назад
Qualtrics Recoding Variable Names and Value Label Coding
Qualtrics Adding Question Requirements and Validation
Просмотров 6 тыс.Год назад
Qualtrics Adding Question Requirements and Validation
Qualtrics Survey Sharing Collaboration
Просмотров 1,4 тыс.Год назад
Qualtrics Survey Sharing Collaboration
Qualtrics Distributing Survey Links and Emails
Просмотров 5 тыс.Год назад
Qualtrics Distributing Survey Links and Emails
Qualtrics Adding Various Question Types
Просмотров 198Год назад
Qualtrics Adding Various Question Types
Basic Confirmatory Factor Analysis CFA in Stata Tutorial
Просмотров 1,6 тыс.Год назад
Basic Confirmatory Factor Analysis CFA in Stata Tutorial
Chi-square tests contingency tables in Stata
Просмотров 1,1 тыс.Год назад
Chi-square tests contingency tables in Stata
Pairwise Correlations in Stata (Pearson, Spearman, Kendall's Tau) Tutorial
Просмотров 4,7 тыс.Год назад
Pairwise Correlations in Stata (Pearson, Spearman, Kendall's Tau) Tutorial
Really? We should do it for 60 tables???? After 6 years EXCEL PRAGRAMMER doesn't consider an option for APA exel.
Thanks for the video. Unfortunately, it is showing error with code 'omegacoef PAQ8_paq801 PAQ8_paq802 PAQ8_paq803 PAQ8_paq804 PAQ8_paq805 PAQ8_paq806 PAQ8_paq807 PAQ8_paq808 model not identified; no paths from latent variable PAQ8_paq801 to observed variables what could be the reason and how to resolve it?
Hey! Thank you so much!! How do I now copy this table into my word document that I need the table in? To I convert the table first in a pdf or how would you continue? BR Jens
I love this tutorial!!! Totally helpful!!! Thx
Thank you very much, it's really helpful!!!
Very helpful video!
Can you please share the excel template as a sample for my Q sort entry as the programmer has put it?
I guess this was made in JASP and not in Stata as said in the video!
Oops
How do you extract it to word if there are so many variables? my table becomes too big and I don't know what to do
You can change the table’s direction if you click it on it
try 'asdoc'
Thank you for you helpful video! And you provided the dataset too. Awesome! Just a doubt... it seems that JASP does not estimate CFA models with ordinal variables. They must be set as scalar before choosing DWLS estimation method. Is it correct?
Yes
The DWLS estimator in JASP is broken! Do not use it. If anyone wants to perform ordinal factor analysis, do it in R, especially if it is for a more serious purpose (such as a thesis). The DWLS estimator in JASP often offers totally nonsensical results, in contrast to, for example, EFA and CFA with ML. I believe this is because DWLS in JASP performs the estimation on the polychoric correlation matrix, which often broke if there is not enough data for every Likert point for every item. Thus, it is not the case that DWLS in JASP works better than ML when you have skewed data, it just messes things up totaly :-) In short, the auto-estimation function in JASP is a total disaster. Use ML, as it will at least give you interpretable results and is robust in JASP to not totally broke. Alternatively, check your model also in EFA with MINRES or ML estimators (which are very similar) and oblimin rotation. For CFA, change your items to scale and compute the CFA with ML. If you have highly skewed items, it will just lower your statistical power, and you may not get that good fits (compared to WLS in R) or even find all the factors if they are not clearly distinct (non-correlated with others). But you will get interpretable and not totally broken results. :-)
GOT this error kindly help (omegacoef Ninahisiuchovuwakihis Ninahisikuchokasanaba Ninahisikufadhaishwana Ninahisinafanyakazikw Calculating McDonald's omega/Raykov's rho... model not identified; no paths from latent variable Ninahisiuchovuwakihis to observed variables r(503);)
I’d have to see your diagram but it could be that you are trying to fit something too complex for the number of observed variables you have
Can you please suggest how to set up hypothesis check for correlation based on t-statistics in JASP? t-statistics value checks if there is some correlation in population (rho value). Thanks
Great! Thank you!
thanks a lot!!!
Awesome! Thank you....
I think I was hoping to see what happens when you do recode and how you could use this to manipulate the data afterwards. I'm grateful for the walkthrough, but it felt like it was just a walkthrough of what I could see myself and stumble upon. It didn't really teach me how to use the feature.
Can you tell me more about what you were hoping to learn?
@@drEresearch If I understood correctly I think is abour what is this use for? (Which I also have the same question) In my mind when I download the answers, I can select these code values? Thanks for your help!
how to know it is normally distributed?
How can I assist and engage in a survey. Where can I get those surveys once they are posted online? Any help.
Thanks a lot
Great tutorial! Can't wait to try it out.
how do i send it to respondents to take the survey three times a day? i want to collect data three times a day please help!
It depends on the kind of account you have. You may be able to have qualtrics email them 3x per day. However, I suggest you use auto send from your email provider instead
Can i conduct EFA usinh the IV and DV together or need to be done seperately?
clearly explained. thanks a lot
great video, thank you! it is super helpful
Wow! I didn't know you could recode in Qualtrics- this is so mind-blowing and helpful! Thank you!
Happy to help!
Good day. I wish to find out if Alpha test works for time series data
It wouldn’t be accurate as the responses are correlated differently
Thanks for the info :)
Thank you!
You're welcome!
This is vvvv helpful! Thank you so much
Great!
TFS for sharing. its mean a lot.
You are so welcome
This was very helpful, thank you!
Glad it was helpful!
Thanks for your excellent explanation. I have a question. when are the results in exploratory factor analysis acceptable for conducting the confirmatory factor analysis or structure equation modeling?
Well, usually with Efa we don’t do any fit statistics. Generally it’s an exploratory procedure. If you have any structure that makes theoretical sense after the Efa, I would test it on another sample with cfa
New friends Karo please
Any idea why I'm not getting z scores displayed?! (pset is 354 so don't know if size is confusing things)
I should also add...thank you so much for this. Pset was too large for pqmethod and kenq had issues with display so this explanation is a god send for a confused PhD student!
I've never had that happen. Send me an email with a screen clip and I'll see if I can figure it out.
Great video! Would you please record one with the possible interpretation for your results as well? Thank you!
Sure thing! I'll work on that this week.
Thank you for this explanation.
You are welcome!
What is the best method for data with normal distribution?
Maximum Likelihood
Very helpful, thank you!
Glad it was helpful!
When certain cells are missing a value, how can you still do a sum? It seems that JASP doesn't calculate the rows that have empty cells.
Right. It only finds the sum if there is complete data. A way around this is to sum the data in a spreadsheet first, then load it into JASP.
Hello mrs, i wanna ask. What is the function of factors below the covariates. Thx u
Factors are variables that are categorical. For example, gender, class, etc. You can use either nominal or ordinal variables there. Covariates is for ordinal or interval-ratio variable. Note that ordinal can be used either place. If you use it as a factor, each category will be compared to the first category. If you use it as covariate, it will be treated as if it is interval-ratio.
thanks
You are welcome
No, this was not helpful. Sending individual links via email is the rub. I tried all of this and it sent out a link that was wrong to my respondents.
Interesting. I've had good look with that, so maybe there was something you were doing?
Thank you very much.
No problem
Thank You! Great!
My pleasure!
Excelent video! Thanksss
Glad you liked it!
Thank You so much. You have this down to a science
You're welcome!
Updated link to R script file: www.dropbox.com/s/34u64ha6jxqbjvy/Sample%20R%20File%20for%20Qsorting.R?dl=0
thanks...
You're welcome!
Nice
Thanks