Lab Report Writing

Discussion or Conclusion

Once you've discussed the most important findings of your study in the Results section, you will use the Discussion section to interpret those findings and talk about why they are important (some instructors call this the Conclusion section). You might want to talk about how your results agree, or disagree, with the results from similar studies. Here you can also mention areas ways you could have improved your study or further research to be done on the topic.

Do not just restate your results - talk about why they are significant and important.

Here's a paragraph taken from the Discussion from the bone fracture paper. Notice how the authors relate their results to what is already known about the topic. The numbers in brackets refer to references listed at the end of their paper (not shown here).

The data indicate that avoiding a low level of physical activity substantially reduces the risk of all fractures, particularly hip fractures—the most devastating of osteoporotic fractures—in men. Even changes in physical activity during the follow-up affected hip fracture risk. As expected, those who maintained a high physical activity level had the lowest risk of hip fracture, but there was also a tendency towards a lower risk of fracture for those who increased their level of activity compared with those who reduced their level of activity, or compared with those who reported constant low activity. This observation has previously been made in women [8,16]. There are several possible mechanisms, related to muscle performance and balance as well as to bone architecture and strength, whereby physical activity can reduce the risk of fractures [28,29].

Test Yourself (Discussion)

Which of the following is a good example of a sentence you would find in the Discussion section of a lab report?

a. Ten dogs with no previous training were selected for the study.
b. Unlike in previous studies on dog training, most of the dogs in this study retained the ability to perform tricks for up to six weeks after the initial training sessions.
c. Seven of the ten dogs learned how to "sit" after three training sessions.
d. It was hypothesized that the dogs would be able to retain all of the training commands for six weeks after the initial training sessions.

Click on the question, to see the answer.