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Homework answers / question archive / SPSS: Paired-Samples t Test Assignment Instructions Overview This assignment is designed to increase your statistical literacy and proficiency in conducting and interpreting the paired-samples t test
SPSS: Paired-Samples t Test Assignment Instructions
Overview
This assignment is designed to increase your statistical literacy and proficiency in conducting and interpreting the paired-samples t test. You will be completing two paired-samples t tests in SPSS, using data that are related to specific research scenarios in the behavioral sciences, such as psychology, social work, and counseling. You will also be completing one Cumulative Knowledge Question that will use an analysis learned in a previous week. Behind the scenes knowledge of how this test is conducted is fundamental to being able to understand and apply research in your related field to your practice. Additionally, SPSS skills are professionally valuable, as it is one of the most commonly used statistical software packages in behavioral science settings, both academic and professional.
Instructions
Please review the SPSS Homework Tutorial in this module for directions on how to run the statistical test, as well as the Results Sections in APA Style presentation, which includes a template for completing the APA-style Results sections for the paired-samples t test. The scenarios begin on the next page.
Problem Set 1: The paired-samples t test Research Scenario: A sports psychologist is studying the efficacy of a new public school health program on the number of minutes 10^{th} graders exercise per week. She surveys a sample of 10^{th} graders before the program begins and records the number of minutes they report exercising per week. After two months in the program, the students are surveyed again. 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 the new public health program significantly increases the number of minutes exercised for 10^{th} graders. Create a boxplot to show the difference between the groups. Follow the directions below the table to complete this part. |
Minutes Ex./Wk. Before Program |
Minutes Ex./Wk. After Program |
45 45 50 55 40 38 50 55 35 50 |
50 45 59 70 60 53 62 81 45 60 |
Problem Set 2: The paired-samples t test Research Scenario: A licensed marriage and family therapist (LMFT) is looking into communication issues in a sample of 9 married couples in his clinic. Specifically, he wants to know if there is a difference in how satisfied husbands and wives are with the communication in their marriage. Because he took research methods and statistics during college, he knows that he needs to use a matched-subjects design to compare related participants like spouses, which requires a paired-samples t test. Each husband and wife completes an inventory where scores range from 0 to 20, and higher scores indicate higher satisfaction with the communication in the marriage. The LMFT records their responses, shown 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 between husbands and wives on their satisfaction with the communication within their marriage. Create a boxplot to show the difference between the groups. Follow the directions below the table to complete this part. |
Husbands |
Wives |
12 9 14 5 8 11 4 4 7 |
8 10 16 7 6 9 7 3 6 |
Problem Set 3: Cumulative Knowledge Question Research Scenario: A social psychologist working for a marketing department wants to study the effect of scenario descriptions on charitable giving to a child hunger organization. He devises two scenarios: one in which an employee of the charity describes child hunger using facts and information (Group 1), and one in which an employee of the charity describes child hunger using an anecdotal example with one “identifiable victim” (Small, 2016) (Group 2). Eight people are interviewed in each group. After hearing the employee read the child hunger scenario, the participants are then asked to state how much money they would donate to the charity to help end child hunger. The data appear in the table below. Using this table, enter the data into a new SPSS data file. Choose the correct analysis (it will be one learned in a previous module) to determine whether there is a difference in the amount of money between the two groups. Follow the directions below the table to complete this part. |
Factual Informative Scenario (1) |
Anecdotal “Identifiable Victim” Scenario (2) |
25 10 25 15 10 20 32 15 |
10 15 15 35 30 50 45 30 |
Submit this assignment by 11:59 p.m. (ET) on Monday at the end of Module/Week 2.
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