State the hypothesis. Explain what information you used to come up with a hypothesis statement.

A weightlifter reads about a new supplement that increases the size of muscles in less than one month. He wants to see if it actually works so he designs the following experiment with his friends. He divides them into two groups of 5. Before the experiment begins, he takes their weight and measures their major muscle groups. One group is given the supplement with water once a day after dinner for a month. The other group is given a placebo with water once a day after dinner for a month. Each group eats the same meals three times a day and works out the same way daily at the gym. The ages of the individuals vary from 20 – 50, and some are men and others are women. At the end of the month, the weightlifter takes the weight and measures the major muscle groups again of his friends.

 

(i) State the purpose of the study

 

(ii) State the hypothesis. Explain what information you used to come up with a hypothesis statement.

 

(iii) State the variables in the scenario. What are the Independent, Dependent, and Controlled (control) variables?

 

(iv) Is this a double-blind study? Explain your reasoning.

 

(v) Imagine that you conducted the experiment to test the hypothesis. Provide hypothetical results from the experiment (i.e., provide hypothetical data for the dependent variable). Do your hypothetical results support the hypothesis? Explain your answer.