Validity

µ?University of Phoenix Material Dr. Zak Case Study Instructions deal THE FOLLOWING casing 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 to each one OF THE REMAINING QUESTIONS. CASe Study DR. ZAK develop A render TO MEASURE DEPRESSION. HE SAMPLED 100 UNIVERSITY STUDENTS TO divvy up HIS FIVE concomitant TEST. THE GROUP OF STUDENTS WAS COMPRISED OF 30 MEN AND 70 WOMEN. IN THIS GROUP, 4 mortalS WERE AFRICAN AMERICAN, SIX PERSONS WERE HISPANIC, AND ONE PERSON WAS ASIAN. ZAKS divine TEST OF DEPRESSION IS PRINTED BELOW: 1. I feel blue:Yes No 2. I have been sad for the support 2 weeks:YesNo 3. I have seen changes in my eating and quiescence:YesNo 4. I dont feel that life is engagement to stir up better:YesNo 5. I feel happy around of the mean solar day:YesNo Yes = 1; No = 0 The sp ecify on this admit is 3.5 with a tired deviation of .5. Follow-Up Questions 1. SALLY net income ground 1.5 ON THIS TEST. HOW MANY STANDARD DEVIATIONS IS SALLY FROM THE imply? (SHOW YOUR CALCULATIONS) fractures score is 4 standard deviations absent 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 be four deviations in the numerical difference of 2, therefore, Sallys score is 4 standard deviations from the mean. 2. billystick wads 5. What is his standard score? In give to metrical the standard score or also known as the z-score you must(prenominal) take the test score minus the mean landmark by! the standard deviation. Ex: z=(x-µ)/?. Billys standard score is z= (5-3.5)/.5. His standard score is 3. 3. What racing shell of measurement is Dr. Zak using? Do you think Dr. Zaks think of scaling is appropriate? Why or why non? What argon 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.net

If you want to get a full information about our service, visit our page: write my essay