Module Three
Validity
 
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Answer to Module 3 Exercise 2
 
     
      Let’s go through another example. Draw your axes again and plot these scores: 
 
     
     
    Perceived Anxiety Scale
    Mid-term Test Scores
    60
    50
    100
    10
    60
    30
    40
    70
    80
    10
    20
    70
    40 
    50
    80
    30
     
 
       You draw two axes: one vertical and one horizontal. Then you plot the scores of the actual measures: 
     
      You will have a scatter plot as your output.  
       
       
       
       
       
 
Readings 
    Chapter 3  -- Linn R.L. & Gronlund, N.E. (1995). Measurement and assessment in teaching. Englewood Cliffs, NJ: Merrill. 
 
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