Choosing the correct analysis

[meeks]

Hi everyone,

Really needing help with choosing the right analysis for my variables.

Background: I'm looking at the difference in amplitude for reaction times of negative, positive, and neutral words.

The IV: reaction times (negative, positive, neutral words)
The DV: amplitude

BOTH variables are continuous. I want to see where the difference in amplitude lies (between positive, negative, and neutral words). I want to do a 2-way ANOVA but the reaction time variable has to be categorical and I'm not sure how to convert it!!

Any help would be appreciated!

Thank you!

 

[hlsmith]

If you are just examining amplitude vs word type, why can't you just do: amplitude = word type dummy coded. You could even control for reaction time if that was applicable.


amplitude = positive + Neutral + reaction time, where negative is your base case.