Cumulative assessment 1 | Psychology homework help

The following research questions can be answered using 1 of the 5 tests you have learned so far: single-sample t-test, paired-samples t-test, independent-samples t-test, one-way ANOVA, or two-way ANOVA. Use the information in the tables to construct your SPSS data file, just as you have been doing in Part 2 of each homework assignment. There is only 1 correct choice of analysis for each question, and note that some tests are 1-tailed and some are 2-tailed. The assessment is open-book/open-notes.

 

For each problem involving a test of significance, your answer must include: A) SPSS output; B) an appropriate graph from SPSS; C) a Results section in current APA style including a statistical statement (i.e., t(19) = 1.79, p = .049); a sentence summarizing the results “in English” (i.e., “There was a significant difference between the two groups on the variable…” or “There was no significant difference…”); and a decision about the null hypothesis.

 

For ANOVA problems: Report statistical findings and make statements for all main effects and interaction effects. Use Tukey’s test for any analyses requiring post hoc tests. Do not create a boxplot–use the graph we typically use in the course for this type of test.

 

Submit this assignment by 11:59 p.m. (ET) on Monday of Module/Week 5.

 

1.      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. He 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. He then administers the new program, and measures children’s pain levels after treatment. Does the new treatment decrease self-reported levels of chronic pain?  (16 pts)

 

Patient

Pain before tx

Pain after tx

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

9

5

6

4

3

10

9

9

7

5

2

5

8

3

6

7

7

6

4

3

3

7

6

8

8

4

4

4

5

4

3

4

 

a)      SPSS output

b)      SPSS graph

c)      Current APA-style Results section