BME100 f2013:W900 Group18 L1
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LAB 1 WRITE-UP
Independent and Dependent Variables
Independent Variable: The dosage of the inflammatory inducing agent (lipopolysaccharide) given to the elderly subjects.
The groups will be organized based on the amount of lipopolysaccharide they are receiving. The highest level of drug given will be 10mg, and the other four levels will be 1mg less of the drug each time.
Level 1 - 10mg (control)
Our subjects would include a random selection of people between the ages of 60 and 100 without any previous medical conditions or currently taking any medication.
Sources of Error and Bias
With any group of people, there will always be lurking variables present. For example, a subject in the experiment might believe they are a healthy individual, but in reality, are unaware of health conditions that may alter the results of this particular experiment. Although the subjects we selected for this experiment were required to be on no medication and have no previous health concerns, bias may still be present if, for example, a person believes they are healthy when they have health issues. A person may be in shape in their mind (obvious bias), but overweight or obese in reality. A person that smokes or previously smoked may be unaware of the effects, and think that there were no effects from the nicotine. Problems with the blood may also be undetectable, as iron deficiency or blood disease are often impossible to detect immediately after the problem arises, so if the subject has not had a recent medical exam, these many health concerns may be prevelant. Like any experiment, error may result from observational or instrumental influence. If the equipment is used improperly, results would be skewed and not appropriate for the specific experiment. Human error may result in inaccurate measurements, which could also skew data.