Learning Targets
1.01B - I can design an experiment and/or evaluate the effectiveness of an experimental design, taking into account independent variable, dependent variable, and control variables.
Can you...
- Identify and classify experimental variables as independent, dependent or controlled.
- Make qualitative (non-mathematical) predictions about the relationship between variables
- Record the procedure used to gather data from the apparatus
- Construct and label a data table
Three Types of Variables:
- Independent variable - the variable that is changed on purpose by the experimenter (It is what intentionally changed.)
- There can only be one independent variable
- Dependent variable - (responding variable) the factor or variable that may change as a result of the changes purposely made in the independent variable (It depends on what was intentionally changed.)
- Variable held constant (constant/control) - factors in an experiment that are kept the same and not allowed to change or vary.