Explore BrainMass
Share

Differences between Experimental vs. Non-experimental Design

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Research is typically experimental or non-experiment in design. It is important for the investigator to know the difference.

Give an example of a question you would attempt to answer using experimental design and one using non-experimental design. Design two research questions. Write one for an experimental design, and one for a non-experimental design. What makes each research design question different from the other? Review the criteria for each.

© BrainMass Inc. brainmass.com October 25, 2018, 9:46 am ad1c9bdddf
https://brainmass.com/health-sciences/qualitative-research-methods/differences-between-experimental-vs-non-experimental-design-586294

Solution Preview

I think what might help you well here is to outline the rationale behind an experimental vs. a non-experimental approach, as well as the benefits and downfalls of each. I'll also link you to two articles that should be good examples of either one answering their own respective research questions.

An experimental approach is necessary in answering research questions that examine a novel phenomenon or as a means to directly manipulate variables to come to a result.

A non-experimental approach is usually used to identify trends and results based off of existing data, or where direct experimentation would be impossible, unethical or logistically costly.

For example, the authors of this paper specifically inhibited the production of nitric oxide in order to test the effects of the lack of nitric oxide on survival of a particular type of neurons. That is an experimental design to answer the question: is nitric oxide required to maintain neuron survival?
http://www.ncbi.nlm.nih.gov/pubmed/25016153

In contrast, ...

Solution Summary

A basic discussion on the differences between experimental and non-experimental design. Some discussion on the basic criteria required for good designs of either.

$2.19
See Also This Related BrainMass Solution

Address an ethical issue raised in the article by answering all of the six questions related to ethical issues, the process of conducting the research, problems that could potentially arise, relevance of the issue to the researcher, your discipline (as related to the issue in the article), and finally your thoughts on how this issue might influence you (as the researcher).

Address an ethical issue raised in the article by answering the following questions. Limit your response of each question to 125 words:

o What ethical issue is at the heart of the article?

o Why is this issue important to the conduct of research?

o What problems might arise if this issue were not addressed by a researcher?

o How is this issue relevant to researchers in your discipline?

o How do researchers in your discipline address this issue?

o What are your thoughts on how this ethical issue might affect your conduct as a researcher?

View Full Posting Details