Answer:
The dependent variable is their degree of sleepiness.
Explanation:
In a correlational study, an independent variable is expected to affect a dependent variable. In the example, the level of caffeine intake is predicted to change the participants' sleep patterns. In other words, the degree of sleepiness <u>depends</u> on the caffeine levels.
An easy way to remember the difference is to say: Independent causes change in dependent.
One of the ways to assess whether or not a learning game is effective is B. doing a quiz before and after the game to see what you have learned.
The point of a learning game is of course to learn something, so giving your students a quiz before and after the game will show how much they have progressed.
