T-Tests in SPSS

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Information about T-Tests in SPSS

Published on October 28, 2007

Author: florentinoz



Instructions for running T-tests in SPSS

Analysis #1 Running a T-Test Florian Schwarz

Running a T-test Under ‘Analyze’, choose ‘ Compare Means’ and ‘ Paired-Samples T Test’

Running a T-test This window will open. Choose which two conditions to compare by highlighting them and clicking the arrow. Then, click ‘OK’.

Running a T-test This will be the output in the Output Viewer

Running a T-test The first part gives you the mean, standard deviation, and the standard error for each variable

Running a T-test The second part includes the t-value and the result of the T test. This is what you will need for reporting the data. Sometimes you will see a bunch of stars in some cells of the table. To change this, right click, choose ‘SPSS Pivot Table Object’ and ‘Edit’. Now you can right click on one or several cells and change the cell properties. You have to adjust the category to number and determine the number of decimals displayed.

Reporting the results of a T-test “ A two-tailed paired T-test was carried out to test the difference between the ‘auch’ and ‘vorher’ condition for significance. The reading time in the ‘auch’ condition was significantly smaller than in the ‘vorher’ condition ( t (19) = 4.72, p < .001).”

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