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Star Glam Gazette

How do you do a one-sample t-test in SPSS?

Author

Matthew Wilson

Updated on May 23, 2026

How to Do a One Sample T Test and Interpret the Result in SPSS

  1. Analyze -> Compare Means -> One-Sample T Test.
  2. Drag and drop the variable you want to test against the population mean into the Test Variable(s) box.
  3. Specify your population mean in the Test Value box.
  4. Click OK.
  5. Your result will appear in the SPSS output viewer.

How do I do a t-test in SPSS?

To run an Independent Samples t Test in SPSS, click Analyze > Compare Means > Independent-Samples T Test. The Independent-Samples T Test window opens where you will specify the variables to be used in the analysis. All of the variables in your dataset appear in the list on the left side.

What is a one-sample t-test testing?

The one-sample t-test is a statistical hypothesis test used to determine whether an unknown population mean is different from a specific value.

How do you do a one-sample t-test?

To run the One Sample t Test, click Analyze > Compare Means > One-Sample T Test. Move the variable Height to the Test Variable(s) area. In the Test Value field, enter 66.5. Click OK to run the One Sample t Test.

What is t-test in SPSS?

The single-sample t-test compares the mean of the sample to a given number (which you supply). The independent samples t-test compares the difference in the means from the two groups to a given value (usually 0). In other words, it tests whether the difference in the means is 0.

How do you use t-test?

Paired Samples T Test By hand

  1. Example question: Calculate a paired t test by hand for the following data:
  2. Step 1: Subtract each Y score from each X score.
  3. Step 2: Add up all of the values from Step 1.
  4. Step 3: Square the differences from Step 1.
  5. Step 4: Add up all of the squared differences from Step 3.

What is the difference between a one sample t test and a 2 sample t-test?

If you are studying one group, use a paired t-test to compare the group mean over time or after an intervention, or use a one-sample t-test to compare the group mean to a standard value. If you are studying two groups, use a two-sample t-test. If you want to know only whether a difference exists, use a two-tailed test.

Why do we use one-sample t-test?

What is t-test in SPSS PDF?

The dependent-sample or paired t-test compares the difference in the means from the two variables measured on the same set of subjects to a given number (usually 0), while taking into account the fact that the scores are not independent. In our examples, we will use the hsb2 data set.

How do you use t tests?