Test your knowledge
Note on Tasks
Before completing the Tasks, please work through each of the sub-pages for Tutorial 5 as these will help complete the task below.
Task 1: Reliability Analysis
Use a Reliability Analysis to create a Social Media Score. In the dataset you should find a set of variables that measures, towards the end measures online activity by Social Media (e.g. Facebook_Write).
Now Answer the following Questions:
Are you able to combined all of these variables into one reliable Social Media Score?
Are there any specific variables that need to be excluded?
With a fellow student discuss the difference between saving them as a Sum or Means score.
Now that you have created a new variable, standardise the score.
Finally, answer the following question:
Is there a difference in Social Media usage between men and women?
Task 2: EFA / PCA
Using the same variables as above, use a EFA to create new Social Media variable(s). Answer the following:
How many factors are being suggested?
Is it meaningful to combined them into 2 factors only?
Given the results, should you combined them into variable?
Which variables would you remove from your final score and why?
Next: Tutorial 6 - Linear Regressions