Which ruler was instrumental in gaining for Russia its first "window to the west" on the Baltic Sea?

To say that two variables are confounded means that

A) They both vary at the same time. B) As one variable changes, the other stays the same. C) Both of the variables have been held constant. D) Both variables are equally responsible for observed changes in the dependent variable.

The purpose of a research report is to tell others what the researcher did, how he did it, and

A) how much it cost. B) where it took place. C) why he did it. D) what he discovered.