Final answer:
Drew can enhance her experimental design by clearly defining her experiment's variables, forming and testing a hypothesis, designing a methodical experiment, collecting and analyzing data accurately, drawing valid conclusions, and verifying the results through repetition or peer review.
Step-by-step explanation:
Drew can improve or modify her experimental design by incorporating several key steps into the scientific process. Firstly, it is essential to observe an event and identify an answerable question that the experiment will address. Clear definition of variables is crucial, drawing distinctions between fixed factors, independent variables, and dependent variables. Second, forming a hypothesis that provides a testable prediction based on observed phenomena is a core component that guides the direction of the experiment.
The third step is the meticulous design of the experiment. This involves determining how light intensity and efficiency are measured and related, and ensuring these measurements are reproducible and accurate. Blinding and the use of placebos could increase the validity of the results, reducing biases. The fourth step is collecting data thoroughly, followed by careful analysis and interpretation of this data to confirm the presence of reliable patterns or significant differences, such as the varying amounts of DNA produced by different fruits.
Finally, Drew should draw conclusions and determine the validity of the hypothesis. This may necessitate revising the hypothesis or the experimental design, particularly if results do not support the initial theory. Moreover, verifying results through repetition of the experiment or peer replication can strengthen the scientific claims made.
Potential Improvements and Revisions
- Refining the thesis statement to align closely with obtained data
- Reorganizing the report for coherence and improved clarity
- Enhancing the experimental protocol to control for more variables
- Increasing sample size or repeating the experiment to affirm reproducibility