Bit More About Advanced Procedures

Interactions can be good or bad. Some heart medications work better when given together. For example, Digoxin and calcium channel blockers go together because they work on different channels. Together they are better than each would be separately. But other heart medications (phenylpropanolamine with MAO inhibitors) can result in fast pulse, increased blood pressure, and even death. This is why we’re often warned not to mix drugs without checking with our doctor.

The ability to check how variables interact is the primary advantage of complex research designs and advanced statistical techniques. Although a 1-Way ANOVA can test to see if different levels of aspirin help relieve headaches. A factorial ANOVA can be used to test both aspirin and gender as predictors of headaches. Or aspirin, gender, time of day, caffeine, and chicken soup. Any number of possible explanations and combination of explanations can be tested with the techniques of multiple regression, MANOVA, factorial ANOVA and causal modeling.

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    Day10: Advanced Procedures
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