Question: 1. What study design was used in this scenario? 2. What was the independent variable? 3. What was the dependent variable? 4. What is the

1. What study design was used in this scenario? 2. What was the independent variable? 3. What was the dependent variable? 4. What is the level of measurement for DRUG? 5. What is the level of measurement for PLAQ?

Scenario 4: (b3 Researchers tested whether a new drug called Alzapen (DRUG) could shrink brain \" plaques that lead to Alzheimer's. Four hundred patients were recruited from a large university hospital; half were given the new drug while the other half were given a placebo. The results indicated a statistically significant reduction in plaque size (PLAC for patients taking the new drug as opposed to patients taking the placebo. Coding for study variables: DRUG1 = Alzapen drug; 2 = placebo PLAQplaque size; 0-700 pm

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