Mary Lou must complete a research project to get her associate degree. She has just one year left to finish her degree and must spend as little time and money as possible on her research. She plans to compare stress levels of 8th graders to stress levels of 9th graders. What research design should she choose in order to get finished fairly quickly and minimize her expenses?

A. Longitudinal
B. Cross-sectional
C. Microgenetic
D. Cross-sequential
I choose B is that correct

I would agree.

Yes, your answer of B is correct. Mary Lou should choose a cross-sectional research design in order to get finished fairly quickly and minimize expenses.

A cross-sectional research design involves collecting data from different groups of people at the same point in time. In Mary Lou's case, she wants to compare the stress levels of 8th graders and 9th graders. By collecting data from both groups simultaneously, she can quickly obtain information about their stress levels without having to follow them over a long period of time.

This research design is cost-effective as it does not require extensive time and resources to track the same individuals over an extended period. Mary Lou can simply collect data from different 8th graders and 9th graders in her desired sample and analyze the results.