Experimental Design

Experimental Design Question Is cancer caused by long-term exposure to power – frequency electromagnetic fields (EMF)? Hypothesis High intensity electromagnetic fields effect cells causing a genetic mutation that leads to cancer. Variables Dependant – Electromagnetic Field Independent – Location/proximity, duration of exposure Controlled – Diet, species, age, sex, area of confinement Procedure Levels of Treatment 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 …

…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. Prediction 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.