Adding main effects when main effects model is insignificant


I have a linear model where both main effects are insignificant, and an overall insignificant model. Should I stop just stop there, or can I add an interaction term and check the model again?



*EDIT* Title should be "Adding interactions when main effects model is insignificant"
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Omega Contributor
Interaction term should be examined if it make sense given the context. And you should keep the main effects in the model.