Question

is it "B" correct answer? please elaborate.

Thank you!

20. A scientist has noted a possible relationship between a certain chemical substance found in fish and the occurrence of kidney failure in humans. Which of the following preliminary steps should the scientist take before conducting a controlled experiment? A. Establish a cause and effect relationship between the substance and the outcome. B. Review the literature to determine what other research is available on this topic. C. Write a research grant proposal to the appropriate federal funding agency D. Distribute letters of consent to human subjects who will be used in the research.

Answer 1

• The preliminary step prior to conduct the research is Review the literature to determine what other research i available on this topic.
• Review literature is help to identify and analyses the particular phenomenon.
• It help to develop the subject, design, methodology, conceptual framework etc.

Answer 2

Option B is correct which state that scientist need to review the literature to determine what other research is available on this topic.

This is because reviewing the literature will increase the knowledge of scientists on the topic and he would be aware of what is known till now about that chemical, which will help in conducting experiments etc.