Each question was worth 4 points each. Since everyone has taken the exam, here are the answers and a brief explanation.
Delimitations are about types of people the sample represents.
It is hypothesized that among Eskimo tribes, there is a relationship between age and arctic hysteria. The answer is dependent, independent, and control, because in a basic relationship hypothesis like this, any kind of behavior that can be managed in the dependent or outcome variable, while age is the independent thing that can't be controlled, and tribal origin is just something the researcher adds as a control to rule out spurious influences. The answer is temporal sequence. Number 2 is the one that rules out feedback loops or things that confuse cause and effect. The answer is life gets better as you get older.