What is a One Simple T Test?

    Using One Simple T-Test Statistic in Research

    This easy tutorial will show you how to run One Simple T-test in SPSS, and how to interpret the result. In another word, The aim of this commentary is to overview checking for student t-test in statistical analysis using SPSS.

    Use Student’s t-test for one sample when you have one measurement variable and a theoretical expectation of what the mean should be under the null hypothesis. It tests whether the mean of the measurement variable is different from the null expectation (Source).

    One-Sample t-test is used when we want to know if our sample comes from a certain population. Still, we do not have complete information about that population, that is, we want to compare whether our results match the results obtained for a specific population. Therefore, we need to have one variable (for example, Math test score) and to know the average value of Math test scores in the population.


    This section describes the assumptions that are made when you use one of these tests. The key assumption relates to normality or the nonnormality of the data. One of the reasons for the popularity of the t-test is its robustness in the face of assumption violation. However, if an assumption is not met even approximately, the significance levels and the power of the t-test are invalidated. Unfortunately, in practice, it often happens that more than one assumption is not met. Hence, take the steps to check the assumptions before you make important decisions based on these tests. There are reports in this procedure that permit you to examine the assumptions, both visually and through assumption tests.

    One-Sample T-Test Assumptions

    The assumptions of the one-sample t-test are:
    1. The data are continuous (not discrete).
    2. The data follow the normal probability distribution.
    3. The sample is a simple random sample from

    An Example: One Simple T-Test in SPSS

    We wanted to know whether the Math test score of students is different from the general population mean of 86.00.

    Null hypothesis:

    There is not a difference between the true mean (μ) and the comparison value (m0).

    Alternative hypothesis:

    There is a difference between the true mean (μ) and the comparison value (m0).

    This easy tutorial will show you how to run One Simple t-test in SPSS, and how to interpret the result.


    There is a lot of statistical software out there, but SPSS is one of the most popular. If you’re a student who needs help with SPSS, there are a few different resources you can turn to. The first is SPSS Video Tutorials. We prepared a page for SPSS Tutor for Beginners. All contents can guide you through Step-by-step SPSS data analysis tutorials and you can see How to Run in Statistical Analysis in SPSS.

    The second option is that you can get help from us, we give SPSS help for students with their assignments, dissertation, or research. Doing it yourself is always cheaper, but it can also be a lot more time-consuming. If you’re not the best at SPSS, then this might not be a good idea. It can take days just to figure out how to do some of the easier things in SPSS. So paying someone to do your SPSS will save you a ton of time and make your life a lot easier.

    The procedure of the SPSS help service at OnlineSPSS.com is fairly simple. There are three easy-to-follow steps.

    1. Click and Get a FREE Quote
    2. Make the Payment
    3. Get the Solution

    Our purpose is to provide quick, reliable, and understandable information about SPSS data analysis to our clients.

    How to Run One Simple T Test in SPSS: Explanation Step by Step

    From the SPSS menu, choose Analyze – Compare means – One-Sample T-Test.

    One Simple T Test in SPSS

    A new window will appear. From the left box transfer variable Math Test Score to Test Variable(s). In the Test Value box, write 86.00 (true mean). Click OK.

    One Simple T test in SPSS

    The results of One sample t-test will appear in the output window.

    One Simple T Test in SPSS

    How to report a One Simple T Test results: Explanation Step by Step

    How to Report Descriptive Statistics Table in SPSS Output?

    The first table shows descriptive statistics (mean, standard deviation, standard error mean, and a number of observations) of our variable Math test score.

    As a result, The average value of the Math test score is 73.08 (M=73.08; SD=16.89).

    One Simple Test SPSS Output.

    How to Report One sample t-test statistics Table in SPSS Output?

    The second table shows One sample t-test statistics.

    In the first row is written population mean (test values = 86.00). We should look at the fourth column (Sig. (2-tailed)) for the significance of the t-test statistic.

    • If p > .05, we fail to reject the null hypothesis.

    In our example, p value is less than 0.05 (p = .000 < .05) so we must reject the null hypothesis and conclude that there is a statistically significant difference between the mean Math test score (M=73.08; SD=16.89) and true population mean (M=86.00).

    One Simple T Test SPSS output

    How to Interpret a One Simple T Test Results in APA Style?

    One sample t-test was conducted to determine whether there is a difference between the results on the Math test and the true population mean (M=86.00). The results indicate a significant difference between the true mean (M=86.00) and the mean Math test score (M=73.08; SD=16.89), [t(36) = -4.651, p = .000]. We, therefore, reject the null hypothesis that there is not a difference between the true mean and the comparison value and conclude that our mean Math test score is significantly different from the true population mean.


    Visit our Reporting One-Sample t Test Page for more details.

    Stop thinking that who will do my SPSS Task!

    How Online SPSS Help Service Works

    how spss homework works

    Submit SPSS Project

    Start by clicking on the GET INSTANT QUOTE button, enter the required details, and upload supporting files to submit your assignment through our user-friendly order form.

    how spss homework works

    Make The Payment

    Our experts will review and update the quote for your assignment. Make the payment to start the processing, we have PayPal integration which is quick and secure.

    how spss homerwork help works

    Get Solution

    Just Relax! You will receive a high-quality result that is 100% plagiarism free within the promised deadline. We will send the solution to your e-mail as per the agreed deadline.

    Our Security Partners

    Open chat
    Need Data Analysis Help ?
    How may I help you?