Question

In: Statistics and Probability

Problem Set 1: The paired-samples t test Research Scenario: Children who experience chronic pain as a...

Problem Set 1: The paired-samples t test Research Scenario: Children who experience chronic pain as a result of medical procedures are the focus of a psychiatrist’s study. Specifically, the psychiatrist wants to measure whether a new program helps decrease feelings of chronic pain in the short-term. She measures children’s self-reports of pain levels before treatment on a standardized scale with a range of 0-10, with 10 being the most severe. She then administers the new program, and measures children’s pain levels after treatment. The data are contained in the table below. Does the new treatment decrease self-reported levels of chronic pain? Using this table, enter the data into a new SPSS data file and run a paired-samples t test to test the claim that the new program decreases self-reported levels of chronic pain. Follow the directions below the table to complete the homework.

Pain before

treatment

Pain after

treatment

9

5

6

4

3

10

9

7

5

2

5

8

3

6

7

8

6

4

3

8

6

7

8

4

5

3

8

Write an APA-style Results section based on your analysis. Include your boxplot as an APA-style figure as demonstrated in the APA writing presentation.

Problem Set 2: The paired-samples t test

Research Scenario: A social worker in a rural school district is interested in how a new program is affecting the number of days that high school students are truant from school (i.e. absent without permission from parents, doctor, etc.). She takes a sample of 15 students from school records and notes the number of days truant in the year before the program and the year after the program. The data are listed in the table below.

Using this table, enter the data into a new SPSS data file and run a paired-samples t test to test the claim that there is a difference in the number of truant days before and after the program was implemented. Follow the directions below the table to complete the homework.

Days Truant from School Year 1

Days Truant from School Year 2

15

10

4

1

19

2

6

0

3

27

4

12

0

5

10

12

6

0

5

0

7

1

0

6

11

4

8

16

4

Write an APA-style Results section based on your analysis. Include your boxplot as an APA-style figure as demonstrated in the APA writing presentation.

Expert Solution

orchestra answered 1 year ago

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