Should We Talk About Invariance?

Listen to the call and then we'll just talk about it a little bit. We like to say the devil is in the details, and we believe the devil is definitely present in this one. Any thoughts or comments would be greatly appreciated. I any is chris shot mater, and i'm a professor of psychology at sorto state university. And i am also a methodologist, which i believe is defined as anyone who calls himself a methodologist and people believe him. Anyway, my post off willo and i have been working on combining eight separate data sets that each at early reading development. With so many kids, we are detecting what we would consider to be trivial differences in parometers