Correlation Scatterplots - Graphing Correlation Data (13-4)

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  • Опубликовано: 14 июл 2024
  • Before we calculate a correlation to see if two variables are linearly related, it is a good idea to look at a picture of our data. We do this using a scatterplot. A scatterplot is used to graphically display correlational data. The relationship between the variables is depicted with dots called data points. Each data point is formed by a pair of X and Y scores. A “regression line” can be added to the scatterplot to better visualize the relationship between variables.
    This video teaches the following concepts and techniques:
    Scatterplots for graphing correlational data
    Link to a Google Drive folder with all of the files that I use in the videos including the Effect Size Calculator for t Tests and datasets. As I add new files, they will appear here, as well.
    drive.google.com/drive/folder...
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Комментарии • 6

  • @zioncrichlow8207
    @zioncrichlow8207 2 года назад

    Loved this video ❤

  • @ethiodiversity-1184
    @ethiodiversity-1184 2 года назад

    wonderful lesson

  • @astondylahamazta6016
    @astondylahamazta6016 3 года назад

    good one u got there . Nice job

  • @livingalifeofadventure8959
    @livingalifeofadventure8959 3 года назад +1

    Greetings sir. How can we interpret and compare the grouped scatter plot for both female and male even though they show similar negatively correlate? I have noticed they have different R squared.

    • @ResearchByDesign
      @ResearchByDesign  3 года назад +1

      Good question...you can't interpret and compare the scatterplots, but you can interpret and compare the coefficients; however, you cannot compare them directly. Check out the correlation spreadsheet in the class Google folder (link in description) or email me through the channel and I will send you a copy. You convert Pearson's r to Fisher's Z, then do a t test. Cool stuff.

    • @livingalifeofadventure8959
      @livingalifeofadventure8959 3 года назад +1

      @@ResearchByDesign Sure, i would like to have it, please send it to andykhoo2007@gmail.com Thank you very much.