I gather patients that have major depressive disorder and want to test a new type of therapeutic drug that is supposed to help alleviate depressive symptoms. Twelve subjects sign up for my study and I give them each 4 different therapeutics: 1) Placebo, 2) Drug A, 3) Drug B, and 4) Drug C. After they take each drug for two weeks, I measure their symptoms and then give them 2 weeks of no drugs so that all drugs will be metabolized and out of their system. What is the independent variable? How many levels are there in this experiment? What is the dependent variable?
I gather patients that have major depressive disorder and want to test a new type of therapeutic drug that is supposed to help alleviate depressive symptoms. Twelve subjects sign up for my study and I give them each 4 different therapeutics: 1) Placebo, 2) Drug A, 3) Drug B, and 4) Drug C. After they take each drug for two weeks, I measure their symptoms and then give them 2 weeks of no drugs so that all drugs will be metabolized and out of their system.
- What is the independent variable?
- How many levels are there in this experiment?
- What is the dependent variable?
Given,
I gather patients that have major depressive disorder and want to test a new type of therapeutic drug that is supposed to help alleviate depressive symptoms. Twelve subjects sign up for my study and I give them each 4 different therapeutics: 1) Placebo, 2) Drug A, 3) Drug B, and 4) Drug C. After they take each drug for two weeks, I measure their symptoms and then give them 2 weeks of no drugs so that all drugs will be metabolized and out of their system.
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