If there are two interaction terms in a single model, does that mess up the interpretation of it? For example, Gender*Weight and Gender*Height.(adsbygoogle = window.adsbygoogle || []).push({});

Say the model is Y~Weight+Height +Gender +Gender*Weight+Gender*Height.

Would I simply interpret it as usual? That is, "The difference in mean response for a one unit increase in weight differs between the genders by the value of the interaction coefficient between weight and gender for a subpopulation of people with Height=some fixed value"?

I've heard that having multiple interactions isn't good because it might complicate the interpetability. I'm not sure how though which is why I'm asking.

Also, isn't the power higher in a model with two interaction if there are in fact two interactions vs having a seperate model for each interaction term?

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# A Two interaction terms

Have something to add?

Draft saved
Draft deleted

Loading...

Similar Threads - interaction terms | Date |
---|---|

A Interaction in ols, centering | Nov 11, 2017 |

A Centering variables, linear regression | Sep 30, 2017 |

A Concept of Interaction | May 26, 2017 |

A Observing interactions with plots using est. coeff. | Apr 24, 2017 |

And - Or - Not in terms of one another | Dec 22, 2015 |

**Physics Forums - The Fusion of Science and Community**