Data Bases • Custom Term Papers • Free Term Papers • Free Research Papers • Free Essays • Free Book Reports • Plagiarism? Links • Top 100 Term Paper Sites • Top 25 Essay Sites • Top 50 Essay Sites • Search 97,000 Papers @ DirectEssays.com • Search 101,000 Papers @ ExampleEssays.com • Search 90,000 Papers @ MegaEssays.com Free Essays • Term Paper Sites • Chuck III's Free Essays • Free College Essays • TermPaperSites.com • My Term Papers • Get Free Essays • Essay World • Planet Papers	Search Lots of Essays Back to Subjects - Science Experimental Design Experimental Design Experimental Design Tacoma Community College Carla M. Broggi - E Biology 100 Spring Quarter, 2000 Is cancer caused by long-term exposure to power – frequency electromagnetic fields (EMF)? High intensity electromagnetic fields effect cells causing a genetic mutation that leads to cancer. Independent – Location/proximity, duration of exposure Controlled – Diet, species, age, sex, area of confinement 1. 100 Rats were divided into 2 groups. 50 matched pairs by age & sex. 2. The pairs were separated and placed into two groups (EMF and nonEMF) 3. One group (EMF) was placed in individual cages measuring 18”x36”x18”, on which an EMF generator is affixed. (EMF generating at least 20 mG (Milligauss, the measure of weak magnetic field intensity.)) 4. The control group was placed in exact dwellings save for the EMF generator. 5. Both the control group and the experimental group were monitored daily for two years (food & water levels) 6. Following the experiment all the rats were subjected to medical testing, including blood testing, dissection and cellular analysis, to determine if they had developed cancer. If prolonged exposure to EMF causes cancer, then there should by an increased number of rats with cancer in the experimental group as opposed to the control group. Bibliography: Word Count: 216
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