PSYC 355 SPSS CUMULATIVE ASSESSMENT INSTRUCTIONS 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 twoway 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 for the 2-way ANOVA--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 school-related anxiety are the focus of a psychiatrist's study. Specifically, the psychiatrist wants to measure whether a new program helps decrease feelings of anxiety in the short-term. He measures children's self-reports of school-related anxiety before treatment on a standardized scale with a range of 0-12, with 12 being the most severe. He then administers the new program, and measures children's self-reported anxiety after treatment. Does the new treatment decrease self-reported levels of school-related anxiety? Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below. (16 pts) Patient Anxiety before tx 1 10 2 6 3 8 4 4 5 5 6 12 7 9 8 9 9 6 10 8 11 2 12 5 13 11 14 11 15 7 16 9 Anxiety after tx 8 6 5 3 3 9 6 8 7 7 3 4 6 10 5 6 a) SPSS output b) SPSS graph c) APA-style Results section 2. In a study of the relationship between girls' playtime activities and self-esteem, 17 girls in a fourth-grade class are selected and randomly assigned to one of two groups. One group plays with a selection of Barbie dolls for one hour, and the other group plays with a selection of toy animal figures. At the end of the hour, the girls are given a verbal interview designed to measure self-esteem. Scores range from 1-12, and higher scores = higher feelings of self-esteem. Is there a significant difference between the groups on feelings of self-esteem? Choose the correct test Page 1 of 4 PSYC 355 to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below. (16 pts) Barbie Group Toy Animal Group 4 3 7 9 6 10 4 6 5 10 8 5 11 10 6 7 9 a) SPSS output b) SPSS graph c) APA-style Results section 3. An investigator in child development research is studying whether parenting styles have an effect on second grade students' behavior at school. She interviews 23 volunteer families from the same class and separates them into three groups of parenting styles: authoritarian (n = 8); authoritative (n = 8); and permissive (n = 7). Their teacher fills out a behavior inventory for each of the 23 children, and the investigator collects and scores them. The scores are contained in the table below. The scores can range from 0-20, and a higher score indicates more behavior problems. Is there a significant difference between the groups? Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below. (16 pts) Authoritarian 8, 13, 4, 15, 5, 4, 9, 12 Authoritative 8, 5, 6, 4, 2, 5, 10, 13 Permissive 10, 8, 16, 9, 8, 3, 15 a) SPSS output b) SPSS graph Page 2 of 4 PSYC 355 c) APA-style Results section 4. A pollster is looking at the effects of political party and gender on attitudes towards television media. She administers a questionnaire with possible scores ranging from 1-45, with higher scores indicating more positive attitudes towards television media, and lower scores indicating less positive attitudes. Based on the data collected below, do political party and/or gender have an effect on attitudes towards television media? Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below. (16 pts) Male Female Republica n 23 30 18 17 11 20 12 10 18 7 Democra t 19 25 20 36 10 27 35 19 28 16 Libertaria n 14 12 6 22 9 10 15 10 21 8 Independen t 37 21 13 16 8 12 11 40 29 20 a) SPSS output b) SPSS graph c) APA-style Results section 5. A clinical psychologist is studying feelings of helplessness in a sample of 18 adult participants diagnosed with hoarding disorder. He contends that those with this disorder will have stronger and more prevalent feelings of helplessness than adults in the general population. He assesses feelings of helplessness on a scale with a possible range of 1-55, with higher scores indicating higher levels of helplessness. The mean in the general population on this measure is 11.5. The sample's scores are as follows: Helplessness Scores 19 10 35 6 42 36 49 15 Page 3 of 4 PSYC 355 12 11 16 8 28 10 14 19 7 31 Do these participants score significantly higher on the helplessness scale? Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions below. (16 pts) a) SPSS output b) SPSS graph c) APA-style Results section Page 4 of 4