Introduction to Two-Way Mixed ANOVA (Split-Plot ANOVA, SPANOVA)

[@joe1579]

I like that Dr. Grande is making videos that deal just with the statistics themselves, focus on these concepts outside of their use in statistical software.

[@nickname1417]

Thank you for the comprehensive video, repeated measures ANOVA is useful statistical method in many majors.

[@DrGrande]

You're welcome, thanks for watching -

[@monicaperry13]

This video was helpful for me to understand this concept. I like how Dr. Grande reviews interval and ratio levels in each of these videos as well. It helps me to remember the concepts.

[@ElizabethPepple]

Thanks, Dr Grande

[@jackiedeleonardis1153]

I found this video to be helpful to determine when to use a two-way mixed ANOVA compared to when you use a two-way repeated measures ANOVA, this helped to clarify what the differences are between the two.

[@zureezee1887]

I found this video to be very helpful and easy to follow and understand, especially for when designing a study that requires the use of a two-way mixed repeated measures ANOVA

[@lizconnor1820]

I agree, my research proposal requires a SPANOVA and I was having difficulty understanding this test and how to conduct it/describe it until this video. Overall, very helpful for replication. His Split-Plot ANOVA SPSS video is a good addition to this video if you are interested more in this test.

[@abdullahalsayar7772]

Super helpful thank you so much.

[@sofsof7842]

Thank you for this video, subscribed! I have one question. I used a few control variables in my data-collection and am now wondering which ones to consider in my ANOVA. I assume you look at the correlations between the control variables and your outcome measure. Is there a certain cut-off? (for example considering those with a correlation of over .70 with the DV)?

[@tongwu8317]

Would you post a video about how to check each of the assumptions?

[@nickname6610]

May I ask what is the minimum sample size for a two-way mixed ANOVA?

[@ShazWag]

If a participants are split into two groups to test a new drug (group 1: new drug / group 2: placebo) and they all complete questionnaire before taking the drug and an hour later, would this be a mixed-design ANOVA? Or does it need at least two post-tests and not just one?

[@1882nanelimon]

Thank you for the video. In SPSS, what does a non significant interaction mean? (but means effects are significant). I can not reject the null hypotesis? Thank you for your answer!

[@DrGrande]

A non-statistically significant result for the interaction would mean there is no interaction effect. There can be significant main effects, but still be a non-significant interaction effect.

[@wahyuniamalia9984]

How if our data is not normally distributed?

[@Twinblade34]

Hello, when i test Homogeneity of Variances in Split-Plot design, am i supposed to test it for all levels and combinations? like in normality? or just the subject factor?