A research question
A prediction that can be tested scientifically.
a logical statement about what will happen if the hypothesis is correct
A research method in which an investigator manipulates one or more factors to observe the effect.
methods and sequence of steps to be performed for the experiment
the act of making and recording a measurement
a summary of the results of the experiment and a statement of how the results relate to the hypothesis
variable that is not changed in an experiment
the experimental factor that is manipulated; the variable whose effect is being studied
the outcome factor; the variable that may change in response to manipulations of the independent variable
a group in an experiment that receives no experimental treatment
A subject or group of subjects in an experiment that is exposed to the factor or condition being tested.
involves changing one factor and observing its effect on one thing while keeping all other things constant