Question

I need to design an experiment with an independent variable and 2 levels. I would like to experiment with whether people say something when someone removes an object from a bag. So far I have

Independent Variable -Removal of Object from bag

1st level-removal of significant vs. insignificant object

I need a second level, it should be something that may have an interaction with the 1st level.
I've thought of gender-but not sure if that's really a good level. Any other ideas or thoughts would be appreciated.
Thanks

Answer 1

Gender or status could be other independent variables. However, if you use gender, you would have four conditions, male observer - male remover; male - female; female - male; and female - female.

Is the bag a possession of the observer or not?

Answer 2

the bag would be a dummy bag, possession of someone conducting the experiment