using a computer to graph results verifying that results match the original hypothesis comparing the results with those of other scientists eliminating any results that appear to be abnormal
I gave my students this multiple choice question: Which step will most likely ensure that the results of an investigation are valid?

Only one answer is correct among these 4 choices:
- using a computer to graph results
- verifying that results match the original hypothesis
- comparing the results with those of other scientists
- eliminating any results that appear to be abnormal

Could you tell me which one is correct?

comparing the results with those of other scientists