23.4 can, could, may and might 2 There are several aspects that (1) can / could be further researched and parts of this experiment that (2) may / could be improved. New areas to research (3) might / could include using different tasks for subjects to undertake. One reason why there were no significant differences found between feedback conditions (4) can / could have been that the feedback given to subjects did not have sufficient impact. The right kind of feedback (5) can / could generally make a significant difference to the results Cohen, 2014]. In our case, instead of telling participants that they performed above or below average, a more meaningful statement (6) might / could have been used that gave the same type of feedback with more power. A larger subject pool (7) can / might help fix this problem. In addition, we believe that having a wider variety of participants (8) can / may also help with generalizability of results 1. could 2. could 3. could 4. could 5. can 6. could 7. might 8. may