Posted: September 12th, 2015

A scientist has noted a possible relationship between a certain chemical substance found in fish and the occurrence of kidney failure in humans

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.