PSY325 Wk2 DQ ?


Ashford 3: - Week 2 - Discussion

Your initial discussion thread is due on Day 3 (Thursday) and you have until Day 7 (Monday) to respond to your classmates. Your grade will reflect both the quality of your initial post and the depth of your responses. Reference the Discussion Forum Grading Rubric for guidance on how your discussion will be evaluated.

Standard Normal Distribution

For this discussion, identify the appropriate application of standardized scores to reflect on their benefits and to interpret how test scores and measures are commonly presented.

Review Chapter 3 of your course text, which introduces probability and the standard normal distribution.  Examine the assumptions and limitations presented in these topics and then consider and discuss the following questions: 

  • When comparing data from different distributions, what is the benefit of transforming data from these distributions to conform to the standard distribution?  
  • What role do z-scores play in this transformation of data from multiple distributions to the standard normal distribution?  
  • What is the relationship between z-scores and percentages?  
  • In your opinion, does one do a better job of representing the proportion of the area under the standard curve?  Give an example that illustrates your answer.     
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