Z-tests were introduced to SPSS version 27 in 2020.

This tutorial quickly walks you through z-tests for single proportions:

- which options should you select?
- how to interpret the output?
- which assumptions should you meet -and how to test these?
- and way more...

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A binomial test examines if a population percentage is equal to *x*.

Example: is 45% of all Amsterdam citizens currently single? Or is it a different percentage?

This simple tutorial quickly walks you through the basics.

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This tutorial walks you through running and interpreting a binomial test in SPSS.

With step-by-step example on downloadable practice data file.

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SPSS sign test for one median the right way. Recode your outcome variable into values higher and lower than the hypothesized median and test if they're distribted 50/50 with a binomial test.

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Z-tests were introduced to SPSS version 27 in 2020.

This tutorial quickly walks you through z-tests for 2 independent proportions:

- which options should you select?
- how to interpret the output?
- which assumptions should you meet -and how to test these?
- and way more...

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The Mann-Whitney test is an alternative for the independent samples t test when the assumptions required by the latter aren't met by the data. The most common scenario is testing a non normally distributed outcome variable in a small sample (say, n < 25).

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SPSS median test evaluates if two groups of respondents have equal population medians on some variable. This easy tutorial quickly walks you through.

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The Kruskal-Wallis test is a nonparametric alternative for a one-way ANOVA.

This tutorial shows when to use it and how to run it in SPSS.

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SPSS Wilcoxon Signed-Ranks test is used for comparing two metric variables measured on one group of cases. It's the nonparametric alternative for a paired-samples t-test when its assumptions aren't met.

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SPSS McNemar test is a procedure for testing whether the proportions of two dichotomous variables are equal. The two variables have been measured on the same cases.

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SPSS sign test for two related medians tests if two variables measured in one group of people have equal population medians.

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SPSS Friedman test compares the means of 3 or more variables measured on the same respondents. Like so, it is a nonparametric alternative for a repeated-measures ANOVA that's used when the latter’s assumptions aren't met.

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SPSS Cochran's Q test is a procedure for testing whether the proportions of 3 or more dichotomous variables are equal. These outcome variables have been measured on the same people or other statistical units.

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## THIS TUTORIAL HAS 7 COMMENTS:

## By Andy on July 8th, 2020

Please give some public or environmental health related case study for binomial test.

## By Ruben Geert van den Berg on July 8th, 2020

What about testing if the percentage of COVID infected people is equal to

x? We're sure you can fill in the details from there, right?