Question: Part One: Problem Set 1: The independent-samples t test
File: Open "Module 2 Exercise File 1" found in Blackboard Course Content (Course Guides and Assignment Instructions-Assignment Instructions-SPSS Homework-SPSS Homework 2 Files).
Research Scenario: A clinical psychologist wants to study the effect of session length on treatment satisfaction for adults in a community clinic who present with internalizing disorders. She randomly selects a sample of 20 clients and assigns them to two groups, a "Short session group" which receives ten 30-minute sessions over 3 months (n =10), and a "Long session group" which receives seven 45-minute sessions over 3 months (n = 10). Clients rate their satisfaction at the end of treatment on a scale of 1-10, with 1 being completely unsatisfied and 10 being completely satisfied. Conduct an independent-samples t test to determine whether there is a difference in treatment satisfaction depending on session length.
1. Paste SPSS output.
2. Beneath your output, write the answers to the following questions:
a. What are the t and p values for "equal variances assumed"?
b. What is the mean satisfaction score for the "Short" group?
3. Write an APA-style Results section based on your analyses. All homework "Results sections" should follow the example given in the SPSS tutorials. Remember to include a decision about the null hypothesis.
4. Create a boxplot to illustrate the difference between the treatment satisfaction levels of the two groups.
Part Two: Problem Set 1: The independent-samples t test
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. Conduct an independent-samples t test to determine whether there a difference in the amount of money between the two groups.
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Factual Informative Scenario
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Anecdotal "Identifiable Victim" Scenario
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25
10
25
15
10
20
32
15
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10
15
15
35
30
50
45
30
|
1. Paste appropriate SPSS output.
2. Paste appropriate SPSS graph.
3. Write an APA-style Results section based on your analyses. All homework "Results sections" should follow the example given in the SPSS tutorials. Remember to include a decision about the null hypothesis.
Part Three: Cumulative Homework
Problem Set 1: Choose the correct method from tests learned in previous modules.
Research Scenario:A developmental psychologist is studying attachment in a sample of 10 toddlers in a local preschool. She uses a measure on which higher scores indicate more secure attachments to caregivers, and the data a. The population mean on this measure is 24.5. Is there a difference between the psychologist's sample and the general population on attachment security?
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Attachment Security
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12.5
23
32
24.5
19.5
17
13.5
23
27.5
32
|
a. Paste appropriate SPSS output.
b. Paste appropriate SPSS graph.
c. Write an APA-style Results section based on your analyses. All homework "Results sections" should follow the example given in the SPSS tutorials and the Course Content document "Writing Results of Statistical Tests in APA Format" (note: you do not have to refer to a figure). Remember to include a decision about the null hypothesis.
Information related to above question is enclosed below:
Attachment:- SPSS_Homework_2_Files.zip