My mind exploded.... I was watching a video on excel, then left it on auto play and not really paying attention, then out of no place, i hear dr grande's voice... haha i died
Hi, Dr. Todd! I want to perform Concurrent Validity and Test-Retest Method. May I use the same set of scores I used in Concurrent for the Test-Retest Method? Thank you so much in advance!
Your video is very clear, I appreciate it very much. Just a question Dr. Grande. I got my data from a survey in a likert scale. How can I use that into useful data here? I mean you show X and Y as a final test score and the GPA score, but I have answers with 1=never, 2=monthly, etc. I know that for Likert scale the mean is not representative as a central tendency measurement since there is not such as thing as monthly and a half, so I read I can use the median instead. Is the median the value of X and Y that I can use in this case to run the Spearman´s Rho? Thanks so much in advance for any kind of help you can give me.
![Kendall's Tau [Easily explained]](/img/n.gif)
Appreciated hearing the difference in assumptions between the Pearson r and the Spearman's rho.
Though the audio of your video is very low, it is really easy to understand. This helped me a lot with my manuscript. Thank you!
Thanks in a million. Awesome. Very well explained. Where have you been all these years.A+
Thank you. Very clear and helpful.
You're welcome!
Thank you so so much!! This really helped me with my math internal assessment.
You are quite welcome!
I’m using this for my Biology IA too! Thanks so much!
literally everybody watching this is doing so for their IAs... mine is for biology
Ahah me too maths IA
@@olliechaplin9178 wow 2 years have passed and your comment just brought me back to this haha
My mind exploded....
I was watching a video on excel, then left it on auto play and not really paying attention, then out of no place, i hear dr grande's voice... haha i died
thank you! this was very helpful for my thesis
You're welcome - thanks for watching -
Hi, Dr. Todd!
I want to perform Concurrent Validity and Test-Retest Method.
May I use the same set of scores I used in Concurrent for the Test-Retest Method?
Thank you so much in advance!
Your video is very clear, I appreciate it very much. Just a question Dr. Grande. I got my data from a survey in a likert scale. How can I use that into useful data here? I mean you show X and Y as a final test score and the GPA score, but I have answers with 1=never, 2=monthly, etc. I know that for Likert scale the mean is not representative as a central tendency measurement since there is not such as thing as monthly and a half, so I read I can use the median instead. Is the median the value of X and Y that I can use in this case to run the Spearman´s Rho? Thanks so much in advance for any kind of help you can give me.
You can check for biserial correlation if one variable is artificially dichotomous variable (X) and another is true continuous variable (Y)
Is the process for calculating SRCC the same for an instance in which there are tied ranks once you have corrected for the ties?
Thanks but do we need to rank exam?
What happened to the 6? Isn’t it 1-6*sumd^2(n^3-n)
It was in the numerator cell
Is the r value the same as rho?
Yes
what if r>1?