When Carrying Out a Controlled Experiment, It is Important To

Question

When carrying out a controlled experiment, it is important to:
A)change multiple variables at once to see the full effect of the variables.
B)subject different groups to different conditions.
C)change only one variable at a time.
D)All of these choices are correct.

Accepted Answer

Changing multiple variables at once can make it difficult to determine which variable is having an effect on the outcome. Subjecting different groups to different conditions can introduce confounding variables that can interfere with the accuracy of the results. Changing only one variable at a time allows for a more controlled experiment and enables the researcher to determine the effect of that specific variable on the outcome.