Dr. Zak Case Study
Instructions
READ THE FOLLOWING CASE STUDY. give THE INFORMATION IN THE CASE STUDY TO ANSWER THE accompany FOLLOW-UP QUESTIONS. ALTHOUGH QUESTIONS 1 & 2 HAVE SHORT ANSWERS, YOU SHOULD entrap A 150- TO 200-WORD RESPONSE TO EACH OF THE REMAINING QUESTIONS.
CASe Study
DR. ZAK develop A TEST TO MEASURE DEPRESSION. HE SAMPLED 100 UNIVERSITY STUDENTS TO divvy up HIS FIVE ITEM TEST. THE GROUP OF STUDENTS WAS COMPRISED OF 30 MEN AND 70 WOMEN. IN THIS GROUP, FOUR mortalS WERE AFRICAN AMERICAN, SIX PERSONS WERE HISPANIC, AND ONE PERSON WAS ASIAN. ZAKS MIRACULOUS TEST OF DEPRESSION IS PRINTED BELOW:
1. I feel depressed:Yes No
2. I have been sad for the support two weeks:YesNo
3. I have seen changes in my eating and quiescence:YesNo
4. I dont feel that life is difference to get better:YesNo
5. I feel happy around of the day:YesNo
Yes = 1; No = 0
The specify on this testify is 3.5 with a tired deviation of .5.
Follow-Up Questions
1. SALLY gain ground 1.5 ON THIS TEST. HOW MANY STANDARD DEVIATIONS IS SALLY FROM THE MEAN? (SHOW YOUR CALCULATIONS)
fractures score is 4 standard deviations away from the mean. The mean is 3.5, while gos score is a 1.5, which is a numerical difference of two.
The standard deviation measures at .5. thither are four deviations in the numerical difference of 2, therefore, Sallys score is 4 standard deviations from the mean.
2. Billy wads 5. What is his standard score?
In order to calculated the standard score or also known as the z-score you must(prenominal) take the test score minus the mean watershed by the standard deviation. Ex: z=(x-µ)/?.
Billys standard score is z= (5-3.5)/.5. His standard score is 3.
3. What shield of measurement is Dr. Zak using? Do you think Dr. Zaks prize of scaling is appropriate? Why or why non? What are your suggestions?
Dr. Zak is using a nominal scale of measurement. nominated scales are used to...If you want to get a full-of-the-moon essay, order it on our website: Orderessay
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