Investigate the effect of creatine supplements

Assignment Help Basic Statistics

Reference no: EM131818807

An article in the San Luis Obispo Tribune (September 7, 1999) described an experiment designed to investigate the effect of creatine supplements on the development of muscle fibers. The article states that the researchers "looked at 19 men, all about 25 years of age and similar in weight, lean body mass, and capacity to lift weights. Ten were given creatine-25 grams a day for the first week, followed by 5 grams a day for the rest of the study. The rest were given a fake preparation. No one was told what he was getting. All the men worked out under the guidance of the same trainer. The response variable measured was gain in fat-free mass (in percent)."

a. What extraneous variables are identified in the given statement, and what strategy did the researchers use to deal with them?

b. Do you think it was important that the men participating in the experiment were not told whether they were receiving creatine or the placebo? Explain.

c. This experiment was not conducted in a doubleblind manner. Do you think it would have been a good idea to make this a double-blind experiment? Explain.

Reference no: EM131818807

Questions Cloud

Workers grow more dissatisfied : The article "Workers Grow More Dissatisfied" in the San Luis Obispo Tribune (August 22, 2002) states that "a survey of 5000 people found that while

Effect of preparation methods on total fat content : According to the article "Effect of Preparation Methods on Total Fat Content, Moisture Content, and Sensory Characteristics of Breaded Chicken Nuggets

Type of care that a heart patient receives : Do ethnic group and gender influence the type of care that a heart patient receives? The following passage is from the article "Heart Care Reflects Race and Sex

Create a risk management plan for your project : Create a risk management plan for your project. To do this, you must create a scope statement and a WBS for your project.

Investigate the effect of creatine supplements : An article in the San Luis Obispo Tribune (September 7, 1999) described an experiment designed to investigate the effect of creatine supplements

How much will profits increase or decrease : If Crane buys 92,000 units from the supplier instead of making those units how much will profits increase or decrease?

Describe the treatments and the response variable : The waiter would record the amount of the bill and of the tip and whether he stood or squatted.

Identify any confounding variables : Identify any confounding variables. Would this study be considered an observational study or an experiment?

Analyze the value and weaknesses of the gordon model : Analyze the value and weaknesses of the Gordon model. Explain the how the price-to-earnings model is used to estimate the value of the stocks.

User Account

All Pages