Hypothesis
educated guess about the results of an experiment
null hypothesis
the hypothesis that there is no significant difference between the ex group
experimental design
a logical consistent process for stating and solving problems in the natural world
independent variable
• variable that is manipulated by the experimenter• what "i" change• goes on x-axis
dependent variable
• the variable that is observed or measured• goes on y axis
control group
• the group that does not receive the independent variable• used for comparison
constant
• factor that remains the same to keep experiment fair