π Observational study: researcher observes without influencing responses.
π§ͺ Experiment: researcher applies treatment before observing responses.
π¦ Example: observational study on cars' driving habits at a yellow light.
π¦ In an observational study, the observer records the actions of the cars at a yellow light.
π In an experiment, the observer stands next to the light with a radar gun to measure the car's speed.
π The behavior of the drivers can be observed and measured in both the observational study and the experiment.
π¦ The video discusses an observational study vs an experiment using a scenario with a radar gun and a yellow light.
π The first car in the scenario stops when it sees the radar gun, while the second car also stops when it sees the radar gun.
π‘ The study aims to observe how drivers react to a yellow light when there is a radar gun present.
π¦ Observational study: Just watching to see what happens without influencing the drivers' actions.
π§ͺ Experiment: Applying a treatment (radar gun) to observe how it affects the drivers' habits.
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