This lecture covers study variables and types. I discuss different study variables: independent variable, dependent variable, correlation variable, confounding variable, odds ratio, and more. Next, I talk about different types of studies: experimental, observational, case-control, cross-sectional, cohort, and more. Lastly, I discuss different types of bias that influence the results of an experiment.
Sam completed his Bachelors of Science in Chemical and Biological Engineering at the University of Colorado Boulder. Following his graduation, he worked at the National Institutes of Health Vaccine Research Center studying HIV. Meanwhile, with a microphone in his garage, Sam founded the MCAT Basics podcast. The podcast has grown to become the top rated MCAT podcast on iTunes. In addition to podcasting, Sam enjoys the outdoors, sports, and his friends and family.