1. Which of the following statements about good experiments is TRUE? A good experiment includes systematic variation for one or more hypothesized causal factors. A good experiment must have an experimental group. A control group may be useful but is not critici A good experiment should include a potentially confounding factor in at least one group. A good experiment should only include replication if the hypothesis has never been tested before. 3.2. Why is replication important to consider when designing an experiment? Replication provides the baseline condition for the independent (treatment) váriable. Replication increases the chances that your results apply only to specific cases. Replication is necessary to introduce systematic variation into an experiment. Replication reduces the chances that a rare result leads you to an erroneous conclusion.
