Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Supported by

Bayesian contrasts


Is it still possible to do Bayesian polynomial contrasts in your program using the following transformation?

The goal is to check the cubic contrast for 7 levels.

In this case, the cubic contrast is -1 1 1 0 -1 -1 1.

Can I

*multiply Level1 by -1 Level2 by 1, Level 3 by 1 and so on…

*Then add level 1,2 &3 to a new variable, for example, var 1

*Then add levels 5,6 &7 to a new variable, for example, var 2 (absolute values)

*In the next step, can I use a T test to check the differences between the two means

and then look at the Bayesian value to give me an indication if there is or isn’t a cubic trend?


Sign In or Register to comment.