Significant in one-way, but not in two-way ANOVA

[Jacopo Bertotti]

Hey, I'm currently doing my data analysis for my thesis but I encountered a problem. The main effect is significant in the one-way ANOVA, but insignificant in the two-way ANOVA. Can somebody help me?

Thanks in advance!

[Carlo Lazzaro]

Jacopo:
what you ask for is an impossible task without taking a look at what you typed and what Stata gave you back (as per FAQ). Thanks.