ANOVA -short for Analysis Of Variance- tests if 3+ population means are all equal or not.

This simple introduction gently walks you through its basics such as sums of squares, effect size, post hoc tests and more.

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SPSS One-Way ANOVA tests whether the means on a metric variable for three or more groups of cases are all equal. The groups of cases are identified by a categorical variable.

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A common post hoc test for ANOVA in SPSS is Tukey’s HSD procedure. It compares each pair of sample means. This tutorial quickly walks you through the entire analysis.

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Run your SPSS two way ANOVA the right way in 5 simple steps. With downloadable data file, enhanced screenshots and annotated output.

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Do you think running a two-way ANOVA with an interaction effect is challenging? Then this is the tutorial for you. We'll run the analysis by following a simple flowchart and we'll explain each step in simple language.

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What is repeated measures ANOVA and when to use it? Which assumptions are involved and how does it work? This simple tutorial quickly walks you through.

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SPSS Repeated measures ANOVA is a procedure for testing whether the means of 3 or more metric variables are equal. These variables have been measured on the same cases.

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This step-by-step tutorial walks you through a repeated measures ANOVA with a within and a between-subjects factor in SPSS. Covers post hoc tests and the interaction effect as well.

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SPSS Repeated Measures ANOVA - 2 Within-Subjects Factors

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Levene’s test examines if 2+ populations have equal variances on some variable. This condition -known as the homogeneity of variance assumption- is required by t-tests and ANOVA.

So how to run and interpret this test in SPSS? This simple tutorial quickly walks you through.

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(Partial) eta squared is an effect size measure for one-way or factorial ANOVA. This tutorial shows 2 easy ways to get it from SPSS.

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The variance is a number that indicates how far a set of numbers lie apart. This tutorial explains the concept gently with examples and illustrations.

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Analysis of covariance or ANCOVA compares 2+ means while controlling for 1+ background variables. Nicely detailed, step-by-step example analysis in SPSS.

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## THIS TUTORIAL HAS 4 COMMENTS:

## By Laurence Moseley on May 28th, 2018

I think that your tutorials are very useful. Over the years, I have kept copies of them. When I meet people who are struggling with SPSS I point them either to the ones which I have collected, or I direct them to your website - Cheers Laurie

## By Ruben Geert van den Berg on May 29th, 2018

Hi Laurence, thanks for the compliment!

You'd better use the online versions because we sometimes rewrite and improve some of our older tutorials -if we can find the time, that is.

## By Robert Grunwald on October 23rd, 2018

Great SPSS ANOVA Tutorials, thank you!

## By YOUNG on October 24th, 2019

Thank you for the useful information.

esp SPSS Repeated Measures ANOVA Tutorial