DATA ANALYSIS: T-TEST
For this Assignment, first identify two independent variables from your data set. For example, these could be male and female subjects or graduate students and undergraduate students. Next, identify a variable in your data set for which you want to explore a difference between the two groups.
In this Assignment, you complete the Independent Samples
t-test Worksheet, which provides step-by-step instructions on how to conduct and interpret the findings of an independent sample
t-test in SPSS. After you have conducted the descriptive statistic, write the results in APA format. An example is provided in the worksheet.
To prepare:
· Complete the Independent Samples
t-test Worksheet found in the Learning Resources.
When starting or if you have already started your week eight assignment, please be sure that you have opened up the correct dataset –
CHAPTER 11, DATASET 1. It is critical that you have the dataset that processes/analyzes independent t-tests on two groups of Alzheimer’s patients who are exploring two different interventions.
LEARNING RESOURCES
· Salkind, N. J., Frey, B. B. (2020c).
Statistics for people who (think they) hate statistics (7th ed.). Sage.
·
· Chapter 11, “t(ea) for Two: Tests Between the Means of Different Groups” (pp. 198–212)
· Chapter 12, “t(ea) for Two (Again): Tests Between the Means of Related Groups” (pp. 213–243)
For this week’s Assignment, download this data set to be used with the Descriptive Statistics Worksheet:
· Salkind, N.J. (2017d).
t(ea) for Two: Tests Between the Means of Different Groups
Download t(ea) for Two: Tests Between the Means of Different Groups
[Data file]. Retrieved from
Statistics for People Who (Think They) Hate Statistics by Salkind, N.J. Copyright 2016 by Sage College. Reprinted by permission of Sage College via the Copyright Clearance Center.
·
Document:
Independent Samples t-test Worksheet
Download Independent Samples t-test Worksheet
(Word document)
Independent Samples
t-Test Worksheet
Objectives
· Compute an Independent Samples
t-test in SPSS
SPSS System
· Make sure you gained access to SPSS. See the online classroom for instructions.
· Download the data set found in the Learning Resources.
· Open the data set file named “Chapter 11 Data Set 1.”
Independent Sample
t-test
Follow the instructions from the
Statistics for People Who (Think They) Hate Statistics textbook, Chapter 11, “t(ea) for Two: Tests Between the Means for Different Groups,” in the section, “Using SPSS to Perform a
t-Test.”
Worksheet Assignment
APA Write-Up Example
An independent
t-test was conducted to compare the mean IPV physical victimization scores of male high school students (N=172, M=2.70, SD=3.82) with those of female high school students (N=64, M=2.25, SD=3.67). This comparison was found not statistically significant. The results indicate that boys and girls did not differ in likelihood of being victims of physical violence.
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Type your APA write-up here. |
