| A | B |
|---|
| accuracy | the degree of conformity of a measure to a standard or a true value |
| conclusion | a decision based on investigation and evidence |
| constant | a variable in an experiment that does not change during the experiment |
| control group | a group in an experiment in which all of the variables are held constant |
| controlled variable | a variable that is kept the same from trial to trial |
| dependent variable | the factor in an experiment that changes as a result of a change in an independent variable |
| fair test | an experiment in which one independent variable is tested by keeping all other independent variables the same |
| independent variable | a variable that is isolated for study in an experiment and that the experimenter manipulates |
| research question | a question used to focus the purpose of a scientific investigation and the procedures used to complete it |
| sample size | the number of observations or data |
| variable | the factor that changes in an experiment |
