week 4


Interpret and compare the performances of students in a test of basic skills.

Question 1: A test has a mean of 30 and a standard deviation of five.

  • Jackie has scored in the 57th percentile.
  • Ethan has a T score of 70.
  • Lan has obtained a z score of –0.2.
  • Salvatore has received a raw score of 27.

On the basis of the information provided, answer the following questions:

  • Who has scored the highest?
  • Who has scored the lowest?

Question 2: is attached see table The following table displays fictitious data for a four-option multiple-choice question:

The data was collected from a hundred individuals classified on the basis of class—upper, middle, or lower. This classification was done on the basis of the total scores using Kelly's 27% rule. Correct options have been marked with an asterisk for each question.

On the basis of the data provided, answer the following question:

• Are there any faulty distractors? Why do you believe the distractors are working (or not working) properly?

In a Microsoft Word document, create a 2- to 3-page report, answering the above questions.

Support your responses with examples.

Using APA format, appropriately cite your sources throughout the

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