What is the difference between one way and two way ANOVA analysis, and how to use SPSS or prism for statistical analysis

One way and Two way ANOVA What is the difference between analysis

So what is the variable of concern ？  Observation variables , Outcome variable .

Two auto variables ( Or attribute variables 、 Category variables ) For a dependent variable ( Observation variables ) The effect of interaction .

For example, you want to observe The height of the son （ Continuous variable ）, Then you can discuss ： Father's height vs. son's height , And the influence of mother's height on son's height . You think there are two factors that affect the observed samples , One is Father's height （ Must be graded ： high , in , low ）, One is Mother's height （ Must be graded ： high , in , low ）.  The sample size of each group should be the same ;

Then this time we need to use ：two-way ANOVA analyzed . Tested H0 The assumption is ： The height of the father has no effect on the height of the son ; The height of the mother has no effect on the height of the son ; There is no interaction between father height and mother height . H1 The assumption is ：.

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Statistical notes

The presentation was very detailed ;

If there is no cross , It can be said that two factors have no effect on the result Superimpose influence .

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Use prism Conduct two way ANOVA analysis ：

Prism Mapping and statistics tutorial （ Two ） - You know

Different days , And different groups   The effect on the result .

give the result as follows ：

Multiple comparison results ：  Different days , Whether there is significant difference between the two groups ： 

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summary ：

Reference material ：

SPSS Super detailed operation ： Two factor multivariate analysis of variance (Two-way Manova) - You know

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