Placebo Effect Essay

Spurlock's independent variable is the change in his eating habits to be exclusive to McDonald's items. As a second independent variable, Spurlock reduces the amount of walking he does from 4-5 miles a day

1. For this experiment, what were the independent variable and the dependent variable? What were the constants?

These three elements are interconnected and can help to understand how illness is affected by different factors in a person’s life. In the first instance, a placebo affects only the psychological element. Consequently the placebo effects the physical and the social element because of the interconnection between these.

The independent variable for the experiment was the paper towels. The dependent variable was the absorbency and strength. The constants for the experiment were the size of the paper towels that were used, the amount of water, the size of the beaker, the size of the cylinder and the amount of the weight.

1) This is an experiment because they are manipulating the amount of caffeine given to the participants. The dependant variable is the time spent on the puzzle. The independent variable is the caffeine.

Dependent variable- jar volume after the egg is out (ml). Controlled variables- jar, same amount of water and corn syrup, same number of days it stayed there, same grade egg, same process, same surface we put them on. The experimental group are both the eggs because they both got tested on. We didn't have a control group because we didn't have an egg that didn't go through a test. The experimental group is the group you experiment on. The control group which doesn´t get tested

Enzyme Lab Report Jessica 9B RESEARCH QUESTION What is the effect of different concentrations of catalase on the rate of reaction? BACKGROUND RESEARCH The task of an enzyme is affected by many factors.

The students may also try harder on the math test when they realize that they are involved in an experiment. To avoid this self-fulfilling prophecy, the experiment is going to be adapted into a double-blind experiment where the experimenters are not going to administer the test, and ergo do not know which is the experimental group. Instead, teachers with specific instructions are going to administer it. Those who are taking the test are also going to assume that they are taking part in a regular math test, and are not going to be told that they are participating in an

Investigate the effect of chemical reaction with different temperature on the activity of the enzyme catalase and hydrogen peroxide. he temperature of (potato) catalase with hydrogen peroxide ((H2O2) are independent variable. Hydrogen peroxide (H2O2) is by product of the chemical reaction that take place in cells (toxic to cell structures) but with the help of the enzyme catalase that toxic substance is converted into harmless oxygen and water. The dependent variable is the increase/decrease to measure enzyme reaction of bubble height of oxygen (O2) in the test tube in 30 minutes time.

Also, the students had no idea that there was an experiment taking place. It would have been ethical if he informed them that an experiment was going to happen beforehand without giving the specific information and later on debriefing them. Operation definition is a variable of interest that lets something be directly measured. The longer it took students to complete the activity, the more uninterested they become due to the caffeine which made their minds bounce around. Those with non-caffeinated drinks were more able to focus and more motivated to finish their activity in a shorter amount of time.

The independent variables being the participants, and the dependent variable being the energy drinks and soda. The students whom had consumed both beverages ranged from sixty to seventy. Now made evident that although there was a difference there were occasionally inverse results as well. All while those students whom had not consumed either beverage showed a wider range in radial pulse from fifty to eighty. Having this new information the defaults in the experiment are made quite clear there are gaps that needed to be filled in order to get a much more accurate information. The controls pose an inconstancy in the amount, constantly fluctuating leading researchers to believe that further detail is required in order to carry out that hypothesis. One important variable would be how much consumption is being taken in then leading to per how many days. Initially when one consumes either beverage there the elements contained inside are installed to have and increased effect on the heart rate and blood pressure SO2 was shown to have a major impact on the outcomes of those whom had taken the soda specifically (Institute, 2007). This clearly target just one of the effects that cause the rise in blood pressure and heart rate. Another very important factor needed to be taken into consideration would be the age, concentration of the consumed

In medical field, it is quite interesting considering how the brain works and the power of mind perception that can affect the overall body. In this case, placebos are examples that justify this. Placebos are mainly given to a patient to ease the pain and to satisfy their desire of wanting to receive a medical care or treatments or plainly just the desire of the doctor to help. Regarding to whether patient should be informed or not, I think that informing a patient is not obligatory when prescribing a placebo. Scientifically, it is proven that the use of placebo in treating some diseases seems to work effectively with or without deception. Kaptchuk et al. (2010) reported that nearly 60% of patients with irritable bowel syndrome felt better after knowingly consuming placebos (in the form of sugar pills) comparing to 35% of patients without such medication. But if we take an insight look at the research, even though the patients know about the placebo, the researchers however, also added that it has shown to promote or generate a self-healing processes related to mind-body connection. This implicates that it might not be the placebo itself that cause such placebo effects but how it is given in terms of addressing the message to the patients. In other words, they implanted a suggestion to the patients that even though it is just a sugar pill but it is proven to be useful that made patients became more convinced that it has the same effect as the actual

The placebo effect is often thought of as an act of fooling the mind into perceiving a benefit that has no physical basis. This depiction of the mind as a naïve and foolish organ may be incomplete and ill-representative of the mind's abilities. Indeed, the mind may orchestrate a physical response in the body based on its

The independent variable is the varying exercise times (2 minutes, 5minutes, 7 minutes, and 10 minutes) and the test subjects (human vs dog). The dependent variable is the CO2 output. The hypothesis is that the human will have a higher output of CO2 for longer compared to the dog and that the dog will get closer to its control faster than the human. If the CO2 output of a dog and a human are compared for the same type of exercise, then the dog will have less of a CO2 output and will get closer to its control CO2 faster because dogs have to exert less energy to move themselves because they use four legs to run instead of two.

The following are the details of the dependent variables and also the factor used for the purpose of analysing the data: