VARIABLES

VARIABLES

1. What is it?

   • Any item, factor, or condition that can be controlled or changed.

2. Independent

   • The one that is manipulated or changed by the scientist.

3. Dependent

   • The one observed or measured in the experiment.

4. Discrete

   • Can only take on discrete specific values.

5. Quantitative

   • Variables that have are measured on a numeric or quantitative scale.

6. Controlled

   • The one which the researcher holds constant (controls) during an experiment.

7. Examples

   • If we water a plant with different amounts of water (liters) the height will change. The independent variable is the water, because we are changing it. The dependentt is the height because it´s afected by the water. The q
   • When boiling water. The controlled variable is the temperature and the amount of water and the time. This can´t change to repeat and have the same results.
   • Quantitative: height, wheight, temperature, preasure, velocity, time, etc.
   • The number of client that enter a certain store. The variable can only be in that time interval. And is the number of clients.