• EXTRACTION->PRINCIPAL AXIS FACTORING
  • EXTRACTION->SCREE PLOT
  • ROTATION->VARIMAX

Factor Analysis in Jamovi

  1. Go to "Factor""Principal Component Analysis".
  2. Move your items (variables) into the analysis box.
  3. Check Scree plot.
  4. Under Rotation, select Varimax.
  5. Number of Components->Based on eigenvalue 
  6. HIDE LOADINGS BELOW->1 
  7. In the Loadings table, look for items with loadings above .5 on a factor — these are your strong items.

Describe the results of the exploratory factor analysis:

  1. How many factors were extracted
  2. List the factors in a table
  3. Can you subjectively make sense of how the items loaded on each factor (what does each factor mean?)
  4. After examining the data, how many factors you would retain in your final solution?  Explain your reasoning for including or excluding each factor. 
  5. Try your best at writing up the results section

Click "Week 7 Assignment: Item Analysis Assignment" above to begin your assignment. The assignment is due by end of the day on Sunday.