Zusammenfassung der Ressource
VARIABLES
- What is it?
- Any item, factor, or condition
that can be controlled or
changed.
- Independent
- The one that is manipulated or
changed by the scientist.
- Dependent
- The one observed or measured in the experiment.
- Discrete
- Can only take on
discrete specific
values.
- Quantitative
- Variables that have are measured
on a numeric or quantitative scale.
- Controlled
- The one which the researcher holds constant
(controls) during an experiment.
- 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.