u08a1 Independent Samples t-test In this assignment, you will calculate an Independent Samples t-test,
u08a1 Independent Samples t-test
In this assignment, you will calculate an Independent Samples t-test, and provide interpretations for it using the terminology you have learned in this course. Specifically, you will be returning to the variables you examined in Units 2, 3, and 6; namely, IQ and Gender. Previously, you provided interpretations of the differences between genders on their IQ scores based on visual inspection of the data, histograms, descriptive statistics, and correlations. In this assignment, however, you will be examining if the two independent groups of participants obtained significantly different scores on the dependent variable in our data set. Additionally, you will be examining the normality of distribution of scores, and the homogeneity of variance across the two independent groups. In preparation for this sixth SPSS assignment, complete the following three activities.
Note: The Copy Object function was not repeated here, but can be accessed in Unit 2.
- Watch the SPSS Demonstration: Calculating an Independent Samples t-test. This audio-visual demonstration provides a guided tour of using SPSS to calculate an Independent Samples t-test, a Shapiro-Wilks W test of normality, and a Levene's test of homogeneity of variance that is similar to your assignment. The process is the same, but the variables and values used are different from your actual assignment.
- Review the content in the Kirkpatrick and Feeney text on Independent Samples t-tests (see Chapter 8 ).
- Read the SPSS Step-by-Step Instructions: Independent Samples t-test that are written with the exact process and the same variables and values as your assignment.
Your Sixth SPSS Assignment
Calculate a t-test for two independent samples using gender as the independent variable and IQ as the dependent variable. Discuss all results and provide an interpretation that includes: correct use of descriptive statistics terminology; analysis of the t-test, W test, and Levene's test; conclusions related to the research questions and hypotheses; and any limitations regarding those conclusions. Incorporate these new results and analysis into your interpretation from previous units' assignments (Units 2, 3, and 6). A minimum of 1000 words total is required for the report's four sections.
Use the Copy Object procedure to paste your SPSS output into a Word document. Be selective about the output you are pasting into the document. Use only the output that supports your statements of discussion or interpretation. Submit your assignment as an attached Word document in the Assignment section of the Courseroom.
Deliverable: Word Document
